6570738772 has 24 divisors (see below), whose sum is σ = 12427411752. Its totient is φ = 3021849600.

The previous prime is 6570738767. The next prime is 6570738793. The reversal of 6570738772 is 2778370756.

It can be written as a sum of positive squares in 4 ways, for example, as 479872836 + 6090865936 = 21906^2 + 78044^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210229 + ... + 239452.

It is an arithmetic number, because the mean of its divisors is an integer number (517808823).

Almost surely, 2^6570738772 is an apocalyptic number.

It is an amenable number.

6570738772 is a deficient number, since it is larger than the sum of its proper divisors (5856672980).

6570738772 is a wasteful number, since it uses less digits than its factorization.

6570738772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449979 (or 449977 counting only the distinct ones).

The product of its (nonzero) digits is 3457440, while the sum is 52.

The square root of 6570738772 is about 81060.0935849447. The cubic root of 6570738772 is about 1873.0012499532.

The spelling of 6570738772 in words is "six billion, five hundred seventy million, seven hundred thirty-eight thousand, seven hundred seventy-two".