1245737768425 has 6 divisors (see below), whose sum is σ = 1544714832878. Its totient is φ = 996590214720.

The previous prime is 1245737768413. The next prime is 1245737768467. The reversal of 1245737768425 is 5248677375421.

It can be written as a sum of positive squares in 3 ways, for example, as 1897212249 + 1243840556176 = 43557^2 + 1115276^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1245737768425 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24914755344 + ... + 24914755393.

Almost surely, 2^{1245737768425} is an apocalyptic number.

It is an amenable number.

1245737768425 is a deficient number, since it is larger than the sum of its proper divisors (298977064453).

1245737768425 is an equidigital number, since it uses as much as digits as its factorization.

1245737768425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49829510747 (or 49829510742 counting only the distinct ones).

The product of its digits is 79027200, while the sum is 61.

The spelling of 1245737768425 in words is "one trillion, two hundred forty-five billion, seven hundred thirty-seven million, seven hundred sixty-eight thousand, four hundred twenty-five".