40157980371 has 6 divisors (see below), whose sum is σ = 58005971660. Its totient is φ = 26771986908.

The previous prime is 40157980349. The next prime is 40157980393. The reversal of 40157980371 is 17308975104.

40157980371 is a `hidden beast` number, since 4 + 0 + 1 + 579 + 8 + 0 + 3 + 71 = 666.

40157980371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40157980349) and next prime (40157980393).

It is not a de Polignac number, because 40157980371 - 2¹⁴ = 40157963987 is a prime.

It is a super-2 number, since 2×40157980371² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40157981371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2230998901 + ... + 2230998918.

Almost surely, 2^40157980371 is an apocalyptic number.

40157980371 is a deficient number, since it is larger than the sum of its proper divisors (17847991289).

40157980371 is a wasteful number, since it uses less digits than its factorization.

40157980371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461997825 (or 4461997822 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 40157980371 in words is "forty billion, one hundred fifty-seven million, nine hundred eighty thousand, three hundred seventy-one".