3621400637049 has 48 divisors (see below), whose sum is σ = 5686329376000. Its totient is φ = 2207669447808.

The previous prime is 3621400637033. The next prime is 3621400637083. The reversal of 3621400637049 is 9407360041263.

3621400637049 is a `hidden beast` number, since 3 + 6 + 2 + 1 + 4 + 0 + 0 + 637 + 0 + 4 + 9 = 666.

It is not a de Polignac number, because 3621400637049 - 2⁴ = 3621400637033 is a prime.

It is a super-2 number, since 2×3621400637049² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3621400636995 and 3621400637013.

It is not an unprimeable number, because it can be changed into a prime (3621400637749) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4992204 + ... + 5671410.

Almost surely, 2^{3621400637049} is an apocalyptic number.

3621400637049 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3621400637049 is a deficient number, since it is larger than the sum of its proper divisors (2064928738951).

3621400637049 is a wasteful number, since it uses less digits than its factorization.

3621400637049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679654 (or 679651 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 3621400637049 in words is "three trillion, six hundred twenty-one billion, four hundred million, six hundred thirty-seven thousand, forty-nine".