40145723180 has 48 divisors (see below), whose sum is σ = 86405193504. Its totient is φ = 15658836480.

The previous prime is 40145723147. The next prime is 40145723197. The reversal of 40145723180 is 8132754104.

It is a super-2 number, since 2×40145723180² (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 40145723180.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1803599 + ... + 1825721.

It is an arithmetic number, because the mean of its divisors is an integer number (1800108198).

Almost surely, 2^40145723180 is an apocalyptic number.

It is an amenable number.

40145723180 is an abundant number, since it is smaller than the sum of its proper divisors (46259470324).

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

40145723180 is a wasteful number, since it uses less digits than its factorization.

40145723180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24386 (or 24384 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The spelling of 40145723180 in words is "forty billion, one hundred forty-five million, seven hundred twenty-three thousand, one hundred eighty".