40068977945 has 16 divisors (see below), whose sum is σ = 49265314560. Its totient is φ = 31267132800.

The previous prime is 40068977939. The next prime is 40068977953. The reversal of 40068977945 is 54977986004.

It is not a de Polignac number, because 40068977945 - 2⁴ = 40068977929 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1201040 + ... + 1233950.

It is an arithmetic number, because the mean of its divisors is an integer number (3079082160).

Almost surely, 2^40068977945 is an apocalyptic number.

It is an amenable number.

40068977945 is a deficient number, since it is larger than the sum of its proper divisors (9196336615).

40068977945 is a wasteful number, since it uses less digits than its factorization.

40068977945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38896.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 40068977945 in words is "forty billion, sixty-eight million, nine hundred seventy-seven thousand, nine hundred forty-five".