40157945212 has 48 divisors (see below), whose sum is σ = 87658518528. Its totient is φ = 15638598720.

The previous prime is 40157945203. The next prime is 40157945213. The reversal of 40157945212 is 21254975104.

It is a super-2 number, since 2×40157945212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40157945213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 650218 + ... + 709294.

It is an arithmetic number, because the mean of its divisors is an integer number (1826219136).

Almost surely, 2^40157945212 is an apocalyptic number.

It is an amenable number.

40157945212 is an abundant number, since it is smaller than the sum of its proper divisors (47500573316).

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

40157945212 is a wasteful number, since it uses less digits than its factorization.

40157945212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61306 (or 61304 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 40157945212 in words is "forty billion, one hundred fifty-seven million, nine hundred forty-five thousand, two hundred twelve".