29156451930 has 32 divisors (see below), whose sum is σ = 77750539200. Its totient is φ = 7775053776.

The previous prime is 29156451911. The next prime is 29156451943. The reversal of 29156451930 is 3915465192.

29156451930 is a `hidden beast` number, since 2 + 9 + 1 + 564 + 51 + 9 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 53993160 + ... + 53993699.

It is an arithmetic number, because the mean of its divisors is an integer number (2429704350).

Almost surely, 2^29156451930 is an apocalyptic number.

29156451930 is an abundant number, since it is smaller than the sum of its proper divisors (48594087270).

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

29156451930 is a wasteful number, since it uses less digits than its factorization.

29156451930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107986875 (or 107986869 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The spelling of 29156451930 in words is "twenty-nine billion, one hundred fifty-six million, four hundred fifty-one thousand, nine hundred thirty".