40297374765 has 24 divisors (see below), whose sum is σ = 72101971968. Its totient is φ = 20798644320.

The previous prime is 40297374727. The next prime is 40297374781. The reversal of 40297374765 is 56747379204.

It is not a de Polignac number, because 40297374765 - 2¹² = 40297370669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14442109 + ... + 14444898.

It is an arithmetic number, because the mean of its divisors is an integer number (3004248832).

Almost surely, 2^40297374765 is an apocalyptic number.

40297374765 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40297374765 is a deficient number, since it is larger than the sum of its proper divisors (31804597203).

40297374765 is a wasteful number, since it uses less digits than its factorization.

40297374765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28887049 (or 28887046 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 54.

The spelling of 40297374765 in words is "forty billion, two hundred ninety-seven million, three hundred seventy-four thousand, seven hundred sixty-five".