40519768974 has 16 divisors (see below), whose sum is σ = 85806569808. Its totient is φ = 12712084352.

The previous prime is 40519768943. The next prime is 40519768981. The reversal of 40519768974 is 47986791504.

It is a Curzon number.

It is a congruent number.

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, 198626217 + ... + 198626420.

It is an arithmetic number, because the mean of its divisors is an integer number (5362910613).

Almost surely, 2^40519768974 is an apocalyptic number.

40519768974 is an abundant number, since it is smaller than the sum of its proper divisors (45286800834).

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

40519768974 is a wasteful number, since it uses less digits than its factorization.

40519768974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397252659.

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 40519768974 in words is "forty billion, five hundred nineteen million, seven hundred sixty-eight thousand, nine hundred seventy-four".