40518898632 has 24 divisors (see below), whose sum is σ = 109738683990. Its totient is φ = 13506299520.

The previous prime is 40518898603. The next prime is 40518898639. The reversal of 40518898632 is 23689881504.

40518898632 is a `hidden beast` number, since 4 + 0 + 518 + 8 + 98 + 6 + 32 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36976982436 + 3541916196 = 192294^2 + 59514^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×40518898632² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40518898639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281381169 + ... + 281381312.

Almost surely, 2^40518898632 is an apocalyptic number.

It is an amenable number.

40518898632 is an abundant number, since it is smaller than the sum of its proper divisors (69219785358).

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

40518898632 is a wasteful number, since it uses less digits than its factorization.

40518898632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562762493 (or 562762486 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 40518898632 in words is "forty billion, five hundred eighteen million, eight hundred ninety-eight thousand, six hundred thirty-two".