1373153347457 has 4 divisors (see below), whose sum is σ = 1453927073796. Its totient is φ = 1292379621120.

The previous prime is 1373153347453. The next prime is 1373153347543. The reversal of 1373153347457 is 7547433513731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 803504275456 + 569649072001 = 896384^2 + 754751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373153347457 - 2² = 1373153347453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1373153347399 and 1373153347408.

It is not an unprimeable number, because it can be changed into a prime (1373153347451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40386863144 + ... + 40386863177.

It is an arithmetic number, because the mean of its divisors is an integer number (363481768449).

Almost surely, 2^{1373153347457} is an apocalyptic number.

1373153347457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1373153347457 is a deficient number, since it is larger than the sum of its proper divisors (80773726339).

1373153347457 is an equidigital number, since it uses as much as digits as its factorization.

1373153347457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80773726338.

The product of its digits is 11113200, while the sum is 53.

The spelling of 1373153347457 in words is "one trillion, three hundred seventy-three billion, one hundred fifty-three million, three hundred forty-seven thousand, four hundred fifty-seven".