42626001961 has 2 divisors, whose sum is σ = 42626001962. Its totient is φ = 42626001960.

The previous prime is 42626001947. The next prime is 42626001967. The reversal of 42626001961 is 16910062624.

42626001961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32128770025 + 10497231936 = 179245^2 + 102456^2 .

It is a cyclic number.

It is not a de Polignac number, because 42626001961 - 2²⁵ = 42592447529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42626001961.

It is not a weakly prime, because it can be changed into another prime (42626001967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21313000980 + 21313000981.

It is an arithmetic number, because the mean of its divisors is an integer number (21313000981).

Almost surely, 2^42626001961 is an apocalyptic number.

It is an amenable number.

42626001961 is a deficient number, since it is larger than the sum of its proper divisors (1).

42626001961 is an equidigital number, since it uses as much as digits as its factorization.

42626001961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 42626001961 in words is "forty-two billion, six hundred twenty-six million, one thousand, nine hundred sixty-one".