1373257465850 has 12 divisors (see below), whose sum is σ = 2554258886574. Its totient is φ = 549302986320.

The previous prime is 1373257465847. The next prime is 1373257465901. The reversal of 1373257465850 is 585647523731.

It can be written as a sum of positive squares in 3 ways, for example, as 511280771521 + 861976694329 = 715039^2 + 928427^2 .

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13732574609 + ... + 13732574708.

Almost surely, 2^{1373257465850} is an apocalyptic number.

1373257465850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1373257465850 is a deficient number, since it is larger than the sum of its proper divisors (1181001420724).

1373257465850 is a wasteful number, since it uses less digits than its factorization.

1373257465850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27465149329 (or 27465149324 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 56.

The spelling of 1373257465850 in words is "one trillion, three hundred seventy-three billion, two hundred fifty-seven million, four hundred sixty-five thousand, eight hundred fifty".