748257870361 has 9 divisors (see below), whose sum is σ = 750620739999. Its totient is φ = 745902423624.

The previous prime is 748257870313. The next prime is 748257870379. The reversal of 748257870361 is 163078752847.

The square root of 748257870361 is 865019.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 136039257225 + 612218613136 = 368835^2 + 782444^2 .

It is not a de Polignac number, because 748257870361 - 2⁷ = 748257870233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 748257870296 and 748257870305.

It is not an unprimeable number, because it can be changed into a prime (748257870301) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 317460795 + ... + 317463151.

Almost surely, 2^748257870361 is an apocalyptic number.

748257870361 is the 865019-th square number.

748257870361 is the 432510-th centered octagonal number.

It is an amenable number.

748257870361 is a deficient number, since it is larger than the sum of its proper divisors (2362869638).

748257870361 is an frugal number, since it uses more digits than its factorization.

748257870361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 748257870361 in words is "seven hundred forty-eight billion, two hundred fifty-seven million, eight hundred seventy thousand, three hundred sixty-one".