40045321657377 has 36 divisors (see below), whose sum is σ = 61049059359600. Its totient is φ = 25291282796496.

The previous prime is 40045321657333. The next prime is 40045321657399. The reversal of 40045321657377 is 77375612354004.

40045321657377 is a `hidden beast` number, since 4 + 0 + 0 + 4 + 5 + 3 + 216 + 57 + 377 = 666.

It is not a de Polignac number, because 40045321657377 - 2⁴³ = 31249228635169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40045321657277) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233514138 + ... + 233685564.

Almost surely, 2^{40045321657377} is an apocalyptic number.

It is an amenable number.

40045321657377 is a deficient number, since it is larger than the sum of its proper divisors (21003737702223).

40045321657377 is a wasteful number, since it uses less digits than its factorization.

40045321657377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243370 (or 243348 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 54.

The spelling of 40045321657377 in words is "forty trillion, forty-five billion, three hundred twenty-one million, six hundred fifty-seven thousand, three hundred seventy-seven".