32857429956 has 48 divisors (see below), whose sum is σ = 83195141568. Its totient is φ = 10032796800.

The previous prime is 32857429951. The next prime is 32857429963. The reversal of 32857429956 is 65992475823.

It is a super-2 number, since 2×32857429956² (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 32857429956.

It is not an unprimeable number, because it can be changed into a prime (32857429951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 783475 + ... + 824346.

It is an arithmetic number, because the mean of its divisors is an integer number (1733232116).

Almost surely, 2^32857429956 is an apocalyptic number.

It is an amenable number.

32857429956 is an abundant number, since it is smaller than the sum of its proper divisors (50337711612).

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

32857429956 is a wasteful number, since it uses less digits than its factorization.

32857429956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607972 (or 1607970 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 60.

The spelling of 32857429956 in words is "thirty-two billion, eight hundred fifty-seven million, four hundred twenty-nine thousand, nine hundred fifty-six".