36406640140 has 24 divisors (see below), whose sum is σ = 82335017520. Its totient is φ = 13442451648.

The previous prime is 36406640117. The next prime is 36406640141. The reversal of 36406640140 is 4104660463.

It is a junction number, because it is equal to n+sod(n) for n = 36406640096 and 36406640105.

It is not an unprimeable number, because it can be changed into a prime (36406640141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70012510 + ... + 70013029.

It is an arithmetic number, because the mean of its divisors is an integer number (3430625730).

Almost surely, 2^36406640140 is an apocalyptic number.

It is an amenable number.

36406640140 is an abundant number, since it is smaller than the sum of its proper divisors (45928377380).

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

36406640140 is a wasteful number, since it uses less digits than its factorization.

36406640140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140025561 (or 140025559 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 36406640140 in words is "thirty-six billion, four hundred six million, six hundred forty thousand, one hundred forty".