11250399539491 has 16 divisors (see below), whose sum is σ = 12907847966464. Its totient is φ = 9605538671904.

The previous prime is 11250399539461. The next prime is 11250399539521. The reversal of 11250399539491 is 19493599305211.

It is an interprime number because it is at equal distance from previous prime (11250399539461) and next prime (11250399539521).

It is a de Polignac number, because none of the positive numbers 2^k-11250399539491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11250399539461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4256665 + ... + 6373381.

It is an arithmetic number, because the mean of its divisors is an integer number (806740497904).

Almost surely, 2^{11250399539491} is an apocalyptic number.

11250399539491 is a deficient number, since it is larger than the sum of its proper divisors (1657448426973).

11250399539491 is a wasteful number, since it uses less digits than its factorization.

11250399539491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119690.

The product of its (nonzero) digits is 11809800, while the sum is 61.

The spelling of 11250399539491 in words is "eleven trillion, two hundred fifty billion, three hundred ninety-nine million, five hundred thirty-nine thousand, four hundred ninety-one".