40140734157215 has 4 divisors (see below), whose sum is σ = 48168880988664. Its totient is φ = 32112587325768.

The previous prime is 40140734157203. The next prime is 40140734157269. The reversal of 40140734157215 is 51275143704104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40140734157215 - 2⁴⁴ = 22548548112799 is a prime.

It is a super-2 number, since 2×40140734157215² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4014073415717 + ... + 4014073415726.

It is an arithmetic number, because the mean of its divisors is an integer number (12042220247166).

Almost surely, 2^{40140734157215} is an apocalyptic number.

40140734157215 is a deficient number, since it is larger than the sum of its proper divisors (8028146831449).

40140734157215 is an equidigital number, since it uses as much as digits as its factorization.

40140734157215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8028146831448.

The product of its (nonzero) digits is 470400, while the sum is 44.

The spelling of 40140734157215 in words is "forty trillion, one hundred forty billion, seven hundred thirty-four million, one hundred fifty-seven thousand, two hundred fifteen".