65419288641992 has 32 divisors (see below), whose sum is σ = 126018994999800. Its totient is φ = 31814822075904.

The previous prime is 65419288641899. The next prime is 65419288642031. The reversal of 65419288641992 is 29914688291456.

It can be written as a sum of positive squares in 4 ways, for example, as 57968823603076 + 7450465038916 = 7613726^2 + 2729554^2 .

It is a hoax number, since the sum of its digits (74) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (74).

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, 36547367 + ... + 38295542.

Almost surely, 2^{65419288641992} is an apocalyptic number.

It is an amenable number.

65419288641992 is a deficient number, since it is larger than the sum of its proper divisors (60599706357808).

65419288641992 is a wasteful number, since it uses less digits than its factorization.

65419288641992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74845905 (or 74845901 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 74.

The spelling of 65419288641992 in words is "sixty-five trillion, four hundred nineteen billion, two hundred eighty-eight million, six hundred forty-one thousand, nine hundred ninety-two".