40072501215 has 24 divisors (see below), whose sum is σ = 69860512800. Its totient is φ = 21248458944.

The previous prime is 40072501213. The next prime is 40072501291. The reversal of 40072501215 is 51210527004.

40072501215 is a `hidden beast` number, since 400 + 7 + 250 + 1 + 2 + 1 + 5 = 666.

It is not a de Polignac number, because 40072501215 - 2¹ = 40072501213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40072501213) 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, 2565915 + ... + 2581484.

It is an arithmetic number, because the mean of its divisors is an integer number (2910854700).

Almost surely, 2^40072501215 is an apocalyptic number.

40072501215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40072501215 is a deficient number, since it is larger than the sum of its proper divisors (29788011585).

40072501215 is a wasteful number, since it uses less digits than its factorization.

40072501215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5147583 (or 5147580 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The spelling of 40072501215 in words is "forty billion, seventy-two million, five hundred one thousand, two hundred fifteen".