40685011637397 has 8 divisors (see below), whose sum is σ = 54252408673344. Its totient is φ = 27120477846528.

The previous prime is 40685011637393. The next prime is 40685011637497. The reversal of 40685011637397 is 79373611058604.

It is a happy number.

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

It is not a de Polignac number, because 40685011637397 - 2² = 40685011637393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40685011637397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40685011637393) 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, 715778113 + ... + 715834950.

It is an arithmetic number, because the mean of its divisors is an integer number (6781551084168).

Almost surely, 2^{40685011637397} is an apocalyptic number.

It is an amenable number.

40685011637397 is a deficient number, since it is larger than the sum of its proper divisors (13567397035947).

40685011637397 is a wasteful number, since it uses less digits than its factorization.

40685011637397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431622539.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 40685011637397 in words is "forty trillion, six hundred eighty-five billion, eleven million, six hundred thirty-seven thousand, three hundred ninety-seven".