1964509755 has 16 divisors (see below), whose sum is σ = 3385001760. Its totient is φ = 967143168.

The previous prime is 1964509717. The next prime is 1964509759. The reversal of 1964509755 is 5579054691.

It is not a de Polignac number, because 1964509755 - 2¹⁰ = 1964508731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1964509698 and 1964509707.

It is not an unprimeable number, because it can be changed into a prime (1964509759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5037010 + ... + 5037399.

It is an arithmetic number, because the mean of its divisors is an integer number (211562610).

Almost surely, 2^1964509755 is an apocalyptic number.

1964509755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1964509755 is a deficient number, since it is larger than the sum of its proper divisors (1420492005).

1964509755 is a wasteful number, since it uses less digits than its factorization.

1964509755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074430.

The product of its (nonzero) digits is 1701000, while the sum is 51.

The square root of 1964509755 is about 44322.7904694639. The cubic root of 1964509755 is about 1252.4240439036.

The spelling of 1964509755 in words is "one billion, nine hundred sixty-four million, five hundred nine thousand, seven hundred fifty-five".