11381631837 has 8 divisors (see below), whose sum is σ = 15317336736. Its totient is φ = 7516840752.

The previous prime is 11381631829. The next prime is 11381631841. The reversal of 11381631837 is 73813618311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11381631837 - 2³ = 11381631829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381631817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17728078 + ... + 17728719.

It is an arithmetic number, because the mean of its divisors is an integer number (1914667092).

Almost surely, 2^11381631837 is an apocalyptic number.

It is an amenable number.

11381631837 is a deficient number, since it is larger than the sum of its proper divisors (3935704899).

11381631837 is a wasteful number, since it uses less digits than its factorization.

11381631837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35456907.

The product of its digits is 72576, while the sum is 42.

The spelling of 11381631837 in words is "eleven billion, three hundred eighty-one million, six hundred thirty-one thousand, eight hundred thirty-seven".