40193831561499 has 24 divisors (see below), whose sum is σ = 72383696666112. Its totient is φ = 20879912499120.

The previous prime is 40193831561419. The next prime is 40193831561581. The reversal of 40193831561499 is 99416513839104.

40193831561499 is a `hidden beast` number, since 4 + 0 + 1 + 9 + 3 + 8 + 3 + 1 + 5 + 614 + 9 + 9 = 666.

It is not a de Polignac number, because 40193831561499 - 2⁷ = 40193831561371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (40193831561419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28999877779 + ... + 28999879164.

It is an arithmetic number, because the mean of its divisors is an integer number (3015987361088).

Almost surely, 2^{40193831561499} is an apocalyptic number.

40193831561499 is a deficient number, since it is larger than the sum of its proper divisors (32189865104613).

40193831561499 is a wasteful number, since it uses less digits than its factorization.

40193831561499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57999756967 (or 57999756964 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 40193831561499 in words is "forty trillion, one hundred ninety-three billion, eight hundred thirty-one million, five hundred sixty-one thousand, four hundred ninety-nine".