5122356990778 has 8 divisors (see below), whose sum is σ = 7948484985780. Its totient is φ = 2472861995520.

The previous prime is 5122356990763. The next prime is 5122356990827. The reversal of 5122356990778 is 8770996532215.

It can be written as a sum of positive squares in 2 ways, for example, as 4874614869609 + 247742121169 = 2207853^2 + 497737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5122356990778² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44158249863 + ... + 44158249978.

Almost surely, 2^{5122356990778} is an apocalyptic number.

5122356990778 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5122356990778 is a deficient number, since it is larger than the sum of its proper divisors (2826127995002).

5122356990778 is a wasteful number, since it uses less digits than its factorization.

5122356990778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88316499872.

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 5122356990778 in words is "five trillion, one hundred twenty-two billion, three hundred fifty-six million, nine hundred ninety thousand, seven hundred seventy-eight".