1040157253649 has 2 divisors, whose sum is σ = 1040157253650. Its totient is φ = 1040157253648.

The previous prime is 1040157253631. The next prime is 1040157253691. The reversal of 1040157253649 is 9463527510401.

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., 995990028049 + 44167225600 = 997993^2 + 210160^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040157253649 - 2⁸ = 1040157253393 is a prime.

It is a super-2 number, since 2×1040157253649² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1040157253049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520078626824 + 520078626825.

It is an arithmetic number, because the mean of its divisors is an integer number (520078626825).

Almost surely, 2^{1040157253649} is an apocalyptic number.

It is an amenable number.

1040157253649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040157253649 is an equidigital number, since it uses as much as digits as its factorization.

1040157253649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 1040157253649 in words is "one trillion, forty billion, one hundred fifty-seven million, two hundred fifty-three thousand, six hundred forty-nine".