40520671874 has 4 divisors (see below), whose sum is σ = 60781007814. Its totient is φ = 20260335936.

The previous prime is 40520671859. The next prime is 40520671897. The reversal of 40520671874 is 47817602504.

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

It can be written as a sum of positive squares in only one way, i.e., 23010766249 + 17509905625 = 151693^2 + 132325^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10130167967 + ... + 10130167970.

Almost surely, 2^40520671874 is an apocalyptic number.

40520671874 is a deficient number, since it is larger than the sum of its proper divisors (20260335940).

40520671874 is a wasteful number, since it uses less digits than its factorization.

40520671874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260335939.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 40520671874 in words is "forty billion, five hundred twenty million, six hundred seventy-one thousand, eight hundred seventy-four".