402261251747 has 2 divisors, whose sum is σ = 402261251748. Its totient is φ = 402261251746.

The previous prime is 402261251723. The next prime is 402261251761. The reversal of 402261251747 is 747152162204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402261251747 - 2¹² = 402261247651 is a prime.

It is a super-2 number, since 2×402261251747² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402261251047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201130625873 + 201130625874.

It is an arithmetic number, because the mean of its divisors is an integer number (201130625874).

Almost surely, 2^402261251747 is an apocalyptic number.

402261251747 is a deficient number, since it is larger than the sum of its proper divisors (1).

402261251747 is an equidigital number, since it uses as much as digits as its factorization.

402261251747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 402261251747 in words is "four hundred two billion, two hundred sixty-one million, two hundred fifty-one thousand, seven hundred forty-seven".