63811042156 has 48 divisors (see below), whose sum is σ = 118056032640. Its totient is φ = 30129926400.

The previous prime is 63811042147. The next prime is 63811042159. The reversal of 63811042156 is 65124011836.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (63811042159) 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, 11190106 + ... + 11195806.

It is an arithmetic number, because the mean of its divisors is an integer number (2459500680).

Almost surely, 2^63811042156 is an apocalyptic number.

It is an amenable number.

63811042156 is a deficient number, since it is larger than the sum of its proper divisors (54244990484).

63811042156 is a wasteful number, since it uses less digits than its factorization.

63811042156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7834 (or 7832 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 63811042156 in words is "sixty-three billion, eight hundred eleven million, forty-two thousand, one hundred fifty-six".