11398023877 has 4 divisors (see below), whose sum is σ = 11404059660. Its totient is φ = 11391988096.

The previous prime is 11398023839. The next prime is 11398023883. The reversal of 11398023877 is 77832089311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77832089311 = 53 ⋅1468529987.

It can be written as a sum of positive squares in 2 ways, for example, as 3231467716 + 8166556161 = 56846^2 + 90369^2 .

It is a cyclic number.

It is not a de Polignac number, because 11398023877 - 2¹⁵ = 11397991109 is a prime.

It is a super-2 number, since 2×11398023877² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11398023877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11398023817) 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, 3015058 + ... + 3018835.

It is an arithmetic number, because the mean of its divisors is an integer number (2851014915).

Almost surely, 2^11398023877 is an apocalyptic number.

It is an amenable number.

11398023877 is a deficient number, since it is larger than the sum of its proper divisors (6035783).

11398023877 is an equidigital number, since it uses as much as digits as its factorization.

11398023877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035782.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 11398023877 in words is "eleven billion, three hundred ninety-eight million, twenty-three thousand, eight hundred seventy-seven".