32857478072 has 16 divisors (see below), whose sum is σ = 62651971800. Its totient is φ = 16150285600.

The previous prime is 32857478053. The next prime is 32857478081. The reversal of 32857478072 is 27087475823.

It is a super-2 number, since 2×32857478072² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34806179 + ... + 34807122.

Almost surely, 2^32857478072 is an apocalyptic number.

It is an amenable number.

32857478072 is a deficient number, since it is larger than the sum of its proper divisors (29794493728).

32857478072 is a wasteful number, since it uses less digits than its factorization.

32857478072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69613366 (or 69613362 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 32857478072 in words is "thirty-two billion, eight hundred fifty-seven million, four hundred seventy-eight thousand, seventy-two".