63764966139 has 16 divisors (see below), whose sum is σ = 97170170880. Its totient is φ = 36435432960.

The previous prime is 63764966053. The next prime is 63764966147. The reversal of 63764966139 is 93166946736.

It is not a de Polignac number, because 63764966139 - 2¹¹ = 63764964091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63764966179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500622 + ... + 614940.

It is an arithmetic number, because the mean of its divisors is an integer number (6073135680).

Almost surely, 2^63764966139 is an apocalyptic number.

63764966139 is a deficient number, since it is larger than the sum of its proper divisors (33405204741).

63764966139 is a wasteful number, since it uses less digits than its factorization.

63764966139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140890.

The product of its digits is 26453952, while the sum is 60.

The spelling of 63764966139 in words is "sixty-three billion, seven hundred sixty-four million, nine hundred sixty-six thousand, one hundred thirty-nine".