245784677431 has 2 divisors, whose sum is σ = 245784677432. Its totient is φ = 245784677430.

The previous prime is 245784677423. The next prime is 245784677443. The reversal of 245784677431 is 134776487542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245784677431 - 2³ = 245784677423 is a prime.

It is a super-2 number, since 2×245784677431² (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 (245784677231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122892338715 + 122892338716.

It is an arithmetic number, because the mean of its divisors is an integer number (122892338716).

Almost surely, 2^245784677431 is an apocalyptic number.

245784677431 is a deficient number, since it is larger than the sum of its proper divisors (1).

245784677431 is an equidigital number, since it uses as much as digits as its factorization.

245784677431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31610880, while the sum is 58.

The spelling of 245784677431 in words is "two hundred forty-five billion, seven hundred eighty-four million, six hundred seventy-seven thousand, four hundred thirty-one".