83907257390 has 16 divisors (see below), whose sum is σ = 164763342000. Its totient is φ = 30511729920.

The previous prime is 83907257359. The next prime is 83907257411. The reversal of 83907257390 is 9375270938.

It is a super-2 number, since 2×83907257390² (a number of 23 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 7 ways as a sum of consecutive naturals, for example, 381396515 + ... + 381396734.

It is an arithmetic number, because the mean of its divisors is an integer number (10297708875).

Almost surely, 2^83907257390 is an apocalyptic number.

83907257390 is a deficient number, since it is larger than the sum of its proper divisors (80856084610).

83907257390 is a wasteful number, since it uses less digits than its factorization.

83907257390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762793267.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 83907257390 in words is "eighty-three billion, nine hundred seven million, two hundred fifty-seven thousand, three hundred ninety".