29857475892 has 24 divisors (see below), whose sum is σ = 69711497856. Its totient is φ = 9946198528.

The previous prime is 29857475891. The next prime is 29857475911.

29857475892 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×29857475892² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29857475891) 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, 766893 + ... + 804884.

It is an arithmetic number, because the mean of its divisors is an integer number (2904645744).

Almost surely, 2^29857475892 is an apocalyptic number.

It is an amenable number.

29857475892 is an abundant number, since it is smaller than the sum of its proper divisors (39854021964).

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

29857475892 is a wasteful number, since it uses less digits than its factorization.

29857475892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573367 (or 1573365 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 66.

The spelling of 29857475892 in words is "twenty-nine billion, eight hundred fifty-seven million, four hundred seventy-five thousand, eight hundred ninety-two".