40751767231 has 20 divisors (see below), whose sum is σ = 48646625192. Its totient is φ = 34117672176.

The previous prime is 40751767213. The next prime is 40751767249. The reversal of 40751767231 is 13276715704.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40751767213) and next prime (40751767249).

It is not a de Polignac number, because 40751767231 - 2¹³ = 40751759039 is a prime.

It is a super-2 number, since 2×40751767231² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40751767211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 94116 + ... + 300601.

Almost surely, 2^40751767231 is an apocalyptic number.

40751767231 is a deficient number, since it is larger than the sum of its proper divisors (7894857961).

40751767231 is an frugal number, since it uses more digits than its factorization.

40751767231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394788 (or 394767 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 43.

The spelling of 40751767231 in words is "forty billion, seven hundred fifty-one million, seven hundred sixty-seven thousand, two hundred thirty-one".