45454687961 has 2 divisors, whose sum is σ = 45454687962. Its totient is φ = 45454687960.

The previous prime is 45454687951. The next prime is 45454688003. The reversal of 45454687961 is 16978645454.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36641233561 + 8813454400 = 191419^2 + 93880^2 .

It is a cyclic number.

It is not a de Polignac number, because 45454687961 - 2⁶ = 45454687897 is a prime.

It is a super-2 number, since 2×45454687961² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45454687961.

It is not a weakly prime, because it can be changed into another prime (45454687921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22727343980 + 22727343981.

It is an arithmetic number, because the mean of its divisors is an integer number (22727343981).

Almost surely, 2^45454687961 is an apocalyptic number.

It is an amenable number.

45454687961 is a deficient number, since it is larger than the sum of its proper divisors (1).

45454687961 is an equidigital number, since it uses as much as digits as its factorization.

45454687961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29030400, while the sum is 59.

The spelling of 45454687961 in words is "forty-five billion, four hundred fifty-four million, six hundred eighty-seven thousand, nine hundred sixty-one".