34820520618 has 32 divisors (see below), whose sum is σ = 75046047552. Its totient is φ = 10707148800.

The previous prime is 34820520593. The next prime is 34820520629. The reversal of 34820520618 is 81602502843.

It is a super-2 number, since 2×34820520618² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19543 + ... + 264618.

It is an arithmetic number, because the mean of its divisors is an integer number (2345188986).

Almost surely, 2^34820520618 is an apocalyptic number.

34820520618 is an abundant number, since it is smaller than the sum of its proper divisors (40225526934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34820520618 is a wasteful number, since it uses less digits than its factorization.

34820520618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285750.

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 34820520618 in words is "thirty-four billion, eight hundred twenty million, five hundred twenty thousand, six hundred eighteen".