85670741428 has 24 divisors (see below), whose sum is σ = 153995074632. Its totient is φ = 41672438784.

The previous prime is 85670741411. The next prime is 85670741449. The reversal of 85670741428 is 82414707658.

It can be written as a sum of positive squares in 4 ways, for example, as 19718338084 + 65952403344 = 140422^2 + 256812^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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, 1320600 + ... + 1383952.

It is an arithmetic number, because the mean of its divisors is an integer number (6416461443).

Almost surely, 2^85670741428 is an apocalyptic number.

It is an amenable number.

85670741428 is a deficient number, since it is larger than the sum of its proper divisors (68324333204).

85670741428 is a wasteful number, since it uses less digits than its factorization.

85670741428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72531 (or 72529 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 85670741428 in words is "eighty-five billion, six hundred seventy million, seven hundred forty-one thousand, four hundred twenty-eight".