245400273631 has 2 divisors, whose sum is σ = 245400273632. Its totient is φ = 245400273630.

The previous prime is 245400273611. The next prime is 245400273641. The reversal of 245400273631 is 136372004542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 245400273631 - 2⁹ = 245400273119 is a prime.

It is a super-2 number, since 2×245400273631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245400273611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122700136815 + 122700136816.

It is an arithmetic number, because the mean of its divisors is an integer number (122700136816).

Almost surely, 2^245400273631 is an apocalyptic number.

245400273631 is a deficient number, since it is larger than the sum of its proper divisors (1).

245400273631 is an equidigital number, since it uses as much as digits as its factorization.

245400273631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 245400273631 in words is "two hundred forty-five billion, four hundred million, two hundred seventy-three thousand, six hundred thirty-one".