30914145620 has 24 divisors (see below), whose sum is σ = 64925604744. Its totient is φ = 12364534656.

The previous prime is 30914145599. The next prime is 30914145623. The reversal of 30914145620 is 2654141903.

It can be written as a sum of positive squares in 4 ways, for example, as 125126596 + 30789019024 = 11186^2 + 175468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30914145623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176534 + ... + 304946.

It is an arithmetic number, because the mean of its divisors is an integer number (2705233531).

Almost surely, 2^30914145620 is an apocalyptic number.

It is an amenable number.

30914145620 is an abundant number, since it is smaller than the sum of its proper divisors (34011459124).

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

30914145620 is a wasteful number, since it uses less digits than its factorization.

30914145620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140459 (or 140457 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 30914145620 in words is "thirty billion, nine hundred fourteen million, one hundred forty-five thousand, six hundred twenty".