61468009 has 4 divisors (see below), whose sum is σ = 63450880. Its totient is φ = 59485140.

The previous prime is 61468007. The next prime is 61468019. The reversal of 61468009 is 90086416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61468009 - 2¹ = 61468007 is a prime.

It is a super-2 number, since 2×61468009² = 7556632260848162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61468003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991389 + ... + 991450.

It is an arithmetic number, because the mean of its divisors is an integer number (15862720).

Almost surely, 2^61468009 is an apocalyptic number.

It is an amenable number.

61468009 is a deficient number, since it is larger than the sum of its proper divisors (1982871).

61468009 is a wasteful number, since it uses less digits than its factorization.

61468009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982870.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 61468009 is about 7840.1536336988. The cubic root of 61468009 is about 394.6538847053.

The spelling of 61468009 in words is "sixty-one million, four hundred sixty-eight thousand, nine".