11401798989025 has 27 divisors (see below), whose sum is σ = 14375103045849. Its totient is φ = 8971097004000.

The previous prime is 11401798989019. The next prime is 11401798989041. The reversal of 11401798989025 is 52098989710411.

The square root of 11401798989025 is 3376655.

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

11401798989025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5251875139809 + 6149923849216 = 2291697^2 + 2479904^2 .

It is not a de Polignac number, because 11401798989025 - 2¹⁵ = 11401798956257 is a prime.

It is a super-2 number, since 2×11401798989025² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1029874240 + ... + 1029885310.

Almost surely, 2^{11401798989025} is an apocalyptic number.

11401798989025 is the 3376655-th square number.

11401798989025 is the 1688328-th centered octagonal number.

It is an amenable number.

11401798989025 is a deficient number, since it is larger than the sum of its proper divisors (2973304056824).

11401798989025 is an frugal number, since it uses more digits than its factorization.

11401798989025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22274 (or 11137 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 64.

Multiplying 11401798989025 by its sum of digits (64), we get a square (729715135297600 = 27013240²).

The spelling of 11401798989025 in words is "eleven trillion, four hundred one billion, seven hundred ninety-eight million, nine hundred eighty-nine thousand, twenty-five".