82393774990 has 16 divisors (see below), whose sum is σ = 148312081152. Its totient is φ = 32956779744.

The previous prime is 82393774973. The next prime is 82393774993. The reversal of 82393774990 is 9947739328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82393774993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765907 + ... + 866833.

It is an arithmetic number, because the mean of its divisors is an integer number (9269505072).

Almost surely, 2^82393774990 is an apocalyptic number.

82393774990 is a deficient number, since it is larger than the sum of its proper divisors (65918306162).

82393774990 is a wasteful number, since it uses less digits than its factorization.

82393774990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182571.

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 82393774990 in words is "eighty-two billion, three hundred ninety-three million, seven hundred seventy-four thousand, nine hundred ninety".