40620115872 has 120 divisors (see below), whose sum is σ = 136528783776. Its totient is φ = 11605742208.

The previous prime is 40620115849. The next prime is 40620115873. The reversal of 40620115872 is 27851102604.

40620115872 is a `hidden beast` number, since 4 + 0 + 62 + 0 + 11 + 587 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40620115873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1101238 + ... + 1137525.

Almost surely, 2^40620115872 is an apocalyptic number.

40620115872 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40620115872 is an abundant number, since it is smaller than the sum of its proper divisors (95908667904).

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

40620115872 is a wasteful number, since it uses less digits than its factorization.

40620115872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238792 (or 2238775 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 40620115872 in words is "forty billion, six hundred twenty million, one hundred fifteen thousand, eight hundred seventy-two".