63120973135 has 24 divisors (see below), whose sum is σ = 83283506208. Its totient is φ = 45891595200.

The previous prime is 63120973127. The next prime is 63120973141. The reversal of 63120973135 is 53137902136.

It is not a de Polignac number, because 63120973135 - 2³ = 63120973127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2119045 + ... + 2148625.

It is an arithmetic number, because the mean of its divisors is an integer number (3470146092).

Almost surely, 2^63120973135 is an apocalyptic number.

63120973135 is a deficient number, since it is larger than the sum of its proper divisors (20162533073).

63120973135 is a wasteful number, since it uses less digits than its factorization.

63120973135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33135 (or 33124 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 40.

The spelling of 63120973135 in words is "sixty-three billion, one hundred twenty million, nine hundred seventy-three thousand, one hundred thirty-five".