29509090656 has 48 divisors (see below), whose sum is σ = 77646340800. Its totient is φ = 9812874368.

The previous prime is 29509090549. The next prime is 29509090657. The reversal of 29509090656 is 65609090592.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 29509090599 and 29509090608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29509090657) 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, 326586 + ... + 407033.

It is an arithmetic number, because the mean of its divisors is an integer number (1617632100).

Almost surely, 2^29509090656 is an apocalyptic number.

It is an amenable number.

29509090656 is an abundant number, since it is smaller than the sum of its proper divisors (48137250144).

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

29509090656 is a wasteful number, since it uses less digits than its factorization.

29509090656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734051 (or 734043 counting only the distinct ones).

The product of its (nonzero) digits is 1312200, while the sum is 51.

The spelling of 29509090656 in words is "twenty-nine billion, five hundred nine million, ninety thousand, six hundred fifty-six".