40136856833780 has 36 divisors (see below), whose sum is σ = 98048607410628. Its totient is φ = 13761208056960.

The previous prime is 40136856833693. The next prime is 40136856833783. The reversal of 40136856833780 is 8733865863104.

It can be written as a sum of positive squares in 2 ways, for example, as 16800112254436 + 23336744579344 = 4098794^2 + 4830812^2 .

It is a super-2 number, since 2×40136856833780² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136856833783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20477987201 + ... + 20477989160.

It is an arithmetic number, because the mean of its divisors is an integer number (2723572428073).

Almost surely, 2^{40136856833780} is an apocalyptic number.

It is an amenable number.

40136856833780 is an abundant number, since it is smaller than the sum of its proper divisors (57911750576848).

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

40136856833780 is a wasteful number, since it uses less digits than its factorization.

40136856833780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40955976384 (or 40955976375 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 40136856833780 in words is "forty trillion, one hundred thirty-six billion, eight hundred fifty-six million, eight hundred thirty-three thousand, seven hundred eighty".