40208901857038 has 8 divisors (see below), whose sum is σ = 60321009703032. Its totient is φ = 20101898622696.

The previous prime is 40208901856957. The next prime is 40208901857123. The reversal of 40208901857038 is 83075810980204.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40208901857038.

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, 1276133220 + ... + 1276164727.

It is an arithmetic number, because the mean of its divisors is an integer number (7540126212879).

Almost surely, 2^{40208901857038} is an apocalyptic number.

40208901857038 is a deficient number, since it is larger than the sum of its proper divisors (20112107845994).

40208901857038 is a wasteful number, since it uses less digits than its factorization.

40208901857038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552305826.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 40208901857038 in words is "forty trillion, two hundred eight billion, nine hundred one million, eight hundred fifty-seven thousand, thirty-eight".