45999691290989 has 2 divisors, whose sum is σ = 45999691290990. Its totient is φ = 45999691290988.

The previous prime is 45999691290961. The next prime is 45999691291049. The reversal of 45999691290989 is 98909219699954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28509245754025 + 17490445536964 = 5339405^2 + 4182158^2 .

It is a cyclic number.

It is not a de Polignac number, because 45999691290989 - 2³² = 45995396323693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45999691293989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22999845645494 + 22999845645495.

It is an arithmetic number, because the mean of its divisors is an integer number (22999845645495).

Almost surely, 2^{45999691290989} is an apocalyptic number.

It is an amenable number.

45999691290989 is a deficient number, since it is larger than the sum of its proper divisors (1).

45999691290989 is an equidigital number, since it uses as much as digits as its factorization.

45999691290989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9183300480, while the sum is 89.

The spelling of 45999691290989 in words is "forty-five trillion, nine hundred ninety-nine billion, six hundred ninety-one million, two hundred ninety thousand, nine hundred eighty-nine".