40124345071820 has 48 divisors (see below), whose sum is σ = 89219245620960. Its totient is φ = 15105367563264.

The previous prime is 40124345071813. The next prime is 40124345071873. The reversal of 40124345071820 is 2817054342104.

It is a super-2 number, since 2×40124345071820² (a number of 28 digits) contains 22 as substring.

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, 18672971 + ... + 20710589.

It is an arithmetic number, because the mean of its divisors is an integer number (1858734283770).

Almost surely, 2^{40124345071820} is an apocalyptic number.

It is an amenable number.

40124345071820 is an abundant number, since it is smaller than the sum of its proper divisors (49094900549140).

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

40124345071820 is a wasteful number, since it uses less digits than its factorization.

40124345071820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095562 (or 2095560 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 40124345071820 in words is "forty trillion, one hundred twenty-four billion, three hundred forty-five million, seventy-one thousand, eight hundred twenty".