29100491628 has 24 divisors (see below), whose sum is σ = 73124312688. Its totient is φ = 8953997376.

The previous prime is 29100491621. The next prime is 29100491633. The reversal of 29100491628 is 82619400192.

It is a super-2 number, since 2×29100491628² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29100491628.

It is not an unprimeable number, because it can be changed into a prime (29100491621) 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, 93270651 + ... + 93270962.

It is an arithmetic number, because the mean of its divisors is an integer number (3046846362).

Almost surely, 2^29100491628 is an apocalyptic number.

It is an amenable number.

29100491628 is an abundant number, since it is smaller than the sum of its proper divisors (44023821060).

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

29100491628 is a wasteful number, since it uses less digits than its factorization.

29100491628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186541633 (or 186541631 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 29100491628 in words is "twenty-nine billion, one hundred million, four hundred ninety-one thousand, six hundred twenty-eight".