3420155761 has 12 divisors (see below), whose sum is σ = 3963468240. Its totient is φ = 2926333760.

The previous prime is 3420155749. The next prime is 3420155779. The reversal of 3420155761 is 1675510243.

It is not a de Polignac number, because 3420155761 - 2¹³ = 3420147569 is a prime.

It is a super-3 number, since 3×3420155761³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3420155701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 534751 + ... + 541108.

It is an arithmetic number, because the mean of its divisors is an integer number (330289020).

Almost surely, 2^3420155761 is an apocalyptic number.

It is an amenable number.

3420155761 is a deficient number, since it is larger than the sum of its proper divisors (543312479).

3420155761 is a wasteful number, since it uses less digits than its factorization.

3420155761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075904 (or 1075887 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 3420155761 is about 58482.0977821418. The cubic root of 3420155761 is about 1506.6601270752.

The spelling of 3420155761 in words is "three billion, four hundred twenty million, one hundred fifty-five thousand, seven hundred sixty-one".