540778405992 has 64 divisors (see below), whose sum is σ = 1552473907200. Its totient is φ = 155247387840.

The previous prime is 540778405967. The next prime is 540778406017. The reversal of 540778405992 is 299504877045.

It is an interprime number because it is at equal distance from previous prime (540778405967) and next prime (540778406017).

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, 53900328 + ... + 53910359.

It is an arithmetic number, because the mean of its divisors is an integer number (24257404800).

Almost surely, 2^540778405992 is an apocalyptic number.

It is an amenable number.

540778405992 is an abundant number, since it is smaller than the sum of its proper divisors (1011695501208).

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

540778405992 is a wasteful number, since it uses less digits than its factorization.

540778405992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107810726 (or 107810722 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 540778405992 in words is "five hundred forty billion, seven hundred seventy-eight million, four hundred five thousand, nine hundred ninety-two".