46979557991 has 2 divisors, whose sum is σ = 46979557992. Its totient is φ = 46979557990.

The previous prime is 46979557981. The next prime is 46979558027. The reversal of 46979557991 is 19975597964.

46979557991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 46979557991 - 2³⁰ = 45905816167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46979557951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23489778995 + 23489778996.

It is an arithmetic number, because the mean of its divisors is an integer number (23489778996).

Almost surely, 2^46979557991 is an apocalyptic number.

46979557991 is a deficient number, since it is larger than the sum of its proper divisors (1).

46979557991 is an equidigital number, since it uses as much as digits as its factorization.

46979557991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192893400, while the sum is 71.

The spelling of 46979557991 in words is "forty-six billion, nine hundred seventy-nine million, five hundred fifty-seven thousand, nine hundred ninety-one".