63942934031 has 2 divisors, whose sum is σ = 63942934032. Its totient is φ = 63942934030.

The previous prime is 63942933973. The next prime is 63942934043. The reversal of 63942934031 is 13043924936.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63942934031 - 2³⁴ = 46763064847 is a prime.

It is a super-2 number, since 2×63942934031² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63942934631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31971467015 + 31971467016.

It is an arithmetic number, because the mean of its divisors is an integer number (31971467016).

Almost surely, 2^63942934031 is an apocalyptic number.

63942934031 is a deficient number, since it is larger than the sum of its proper divisors (1).

63942934031 is an equidigital number, since it uses as much as digits as its factorization.

63942934031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 63942934031 in words is "sixty-three billion, nine hundred forty-two million, nine hundred thirty-four thousand, thirty-one".