40135002737680 has 20 divisors (see below), whose sum is σ = 93313881365292. Its totient is φ = 16054001095040.

The previous prime is 40135002737653. The next prime is 40135002737681. The reversal of 40135002737680 is 8673720053104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5697635328784 + 34437367408896 = 2386972^2 + 5868336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×40135002737680² (a number of 28 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 40135002737680.

It is not an unprimeable number, because it can be changed into a prime (40135002737681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250843767031 + ... + 250843767190.

Almost surely, 2^{40135002737680} is an apocalyptic number.

40135002737680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40135002737680 is an abundant number, since it is smaller than the sum of its proper divisors (53178878627612).

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

40135002737680 is a wasteful number, since it uses less digits than its factorization.

40135002737680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501687534234 (or 501687534228 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 40135002737680 in words is "forty trillion, one hundred thirty-five billion, two million, seven hundred thirty-seven thousand, six hundred eighty".