11620542064639 has 2 divisors, whose sum is σ = 11620542064640. Its totient is φ = 11620542064638.

The previous prime is 11620542064633. The next prime is 11620542064697. The reversal of 11620542064639 is 93646024502611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11620542064639 - 2³⁷ = 11483103111167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11620542064592 and 11620542064601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11620542064633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5810271032319 + 5810271032320.

It is an arithmetic number, because the mean of its divisors is an integer number (5810271032320).

Almost surely, 2^{11620542064639} is an apocalyptic number.

11620542064639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11620542064639 is an equidigital number, since it uses as much as digits as its factorization.

11620542064639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 11620542064639 in words is "eleven trillion, six hundred twenty billion, five hundred forty-two million, sixty-four thousand, six hundred thirty-nine".