1992257462658 has 32 divisors (see below), whose sum is σ = 3991144689792. Its totient is φ = 662981312000.

The previous prime is 1992257462647. The next prime is 1992257462719. The reversal of 1992257462658 is 8562647522991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18414610 + ... + 18522482.

It is an arithmetic number, because the mean of its divisors is an integer number (124723271556).

Almost surely, 2^{1992257462658} is an apocalyptic number.

1992257462658 is an abundant number, since it is smaller than the sum of its proper divisors (1998887227134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1992257462658 is a wasteful number, since it uses less digits than its factorization.

1992257462658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112970.

The product of its digits is 130636800, while the sum is 66.

The spelling of 1992257462658 in words is "one trillion, nine hundred ninety-two billion, two hundred fifty-seven million, four hundred sixty-two thousand, six hundred fifty-eight".