3636420437946 has 64 divisors (see below), whose sum is σ = 7641193824000. Its totient is φ = 1152551379456.

The previous prime is 3636420437927. The next prime is 3636420437953. The reversal of 3636420437946 is 6497340246363.

It is a super-2 number, since 2×3636420437946² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737155 + ... + 2795753.

It is an arithmetic number, because the mean of its divisors is an integer number (119393653500).

Almost surely, 2^{3636420437946} is an apocalyptic number.

3636420437946 is an abundant number, since it is smaller than the sum of its proper divisors (4004773386054).

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

3636420437946 is a wasteful number, since it uses less digits than its factorization.

3636420437946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058823.

The product of its (nonzero) digits is 47029248, while the sum is 57.

The spelling of 3636420437946 in words is "three trillion, six hundred thirty-six billion, four hundred twenty million, four hundred thirty-seven thousand, nine hundred forty-six".