40691271515 has 8 divisors (see below), whose sum is σ = 50149242960. Its totient is φ = 31673205792.

The previous prime is 40691271487. The next prime is 40691271521. The reversal of 40691271515 is 51517219604.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 40691271515 - 2⁸ = 40691271259 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109976225 + ... + 109976594.

It is an arithmetic number, because the mean of its divisors is an integer number (6268655370).

Almost surely, 2^40691271515 is an apocalyptic number.

40691271515 is a deficient number, since it is larger than the sum of its proper divisors (9457971445).

40691271515 is a wasteful number, since it uses less digits than its factorization.

40691271515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219952861.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 40691271515 in words is "forty billion, six hundred ninety-one million, two hundred seventy-one thousand, five hundred fifteen".