40154172312 has 32 divisors (see below), whose sum is σ = 106290457200. Its totient is φ = 12597387264.

The previous prime is 40154172287. The next prime is 40154172341. The reversal of 40154172312 is 21327145104.

It is a super-2 number, since 2×40154172312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40154172312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49208137 + ... + 49208952.

Almost surely, 2^40154172312 is an apocalyptic number.

It is an amenable number.

40154172312 is an abundant number, since it is smaller than the sum of its proper divisors (66136284888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40154172312 is a wasteful number, since it uses less digits than its factorization.

40154172312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98417115 (or 98417111 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 40154172312 in words is "forty billion, one hundred fifty-four million, one hundred seventy-two thousand, three hundred twelve".