854979962398 has 4 divisors (see below), whose sum is σ = 1282469943600. Its totient is φ = 427489981198.

The previous prime is 854979962357. The next prime is 854979962411. The reversal of 854979962398 is 893269979458.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×854979962398² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213744990598 + ... + 213744990601.

It is an arithmetic number, because the mean of its divisors is an integer number (320617485900).

Almost surely, 2^854979962398 is an apocalyptic number.

854979962398 is a deficient number, since it is larger than the sum of its proper divisors (427489981202).

854979962398 is a wasteful number, since it uses less digits than its factorization.

854979962398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427489981201.

The product of its digits is 2116316160, while the sum is 79.

The spelling of 854979962398 in words is "eight hundred fifty-four billion, nine hundred seventy-nine million, nine hundred sixty-two thousand, three hundred ninety-eight".