40072599643 has 8 divisors (see below), whose sum is σ = 42500378016. Its totient is φ = 37701945600.

The previous prime is 40072599613. The next prime is 40072599653. The reversal of 40072599643 is 34699527004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40072599643 is a prime.

It is a super-3 number, since 3×40072599643³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40072599613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14279638 + ... + 14282443.

It is an arithmetic number, because the mean of its divisors is an integer number (5312547252).

Almost surely, 2^40072599643 is an apocalyptic number.

40072599643 is a deficient number, since it is larger than the sum of its proper divisors (2427778373).

40072599643 is a wasteful number, since it uses less digits than its factorization.

40072599643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28562165.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 40072599643 in words is "forty billion, seventy-two million, five hundred ninety-nine thousand, six hundred forty-three".