40667457747 has 32 divisors (see below), whose sum is σ = 65591518720. Its totient is φ = 21893794560.

The previous prime is 40667457739. The next prime is 40667457763. The reversal of 40667457747 is 74775476604.

It is not a de Polignac number, because 40667457747 - 2³ = 40667457739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (40667457707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209338 + ... + 353775.

It is an arithmetic number, because the mean of its divisors is an integer number (2049734960).

Almost surely, 2^40667457747 is an apocalyptic number.

40667457747 is a deficient number, since it is larger than the sum of its proper divisors (24924060973).

40667457747 is a wasteful number, since it uses less digits than its factorization.

40667457747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563323.

The product of its (nonzero) digits is 27659520, while the sum is 57.

The spelling of 40667457747 in words is "forty billion, six hundred sixty-seven million, four hundred fifty-seven thousand, seven hundred forty-seven".