11948761731 has 16 divisors (see below), whose sum is σ = 16289892864. Its totient is φ = 7787136864.

The previous prime is 11948761711. The next prime is 11948761757. The reversal of 11948761731 is 13716784911.

It is not a de Polignac number, because 11948761731 - 2¹⁵ = 11948728963 is a prime.

It is a super-2 number, since 2×11948761731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11948761711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70600 + ... + 169946.

It is an arithmetic number, because the mean of its divisors is an integer number (1018118304).

Almost surely, 2^11948761731 is an apocalyptic number.

11948761731 is a deficient number, since it is larger than the sum of its proper divisors (4341131133).

11948761731 is an equidigital number, since it uses as much as digits as its factorization.

11948761731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100250.

The product of its digits is 254016, while the sum is 48.

The spelling of 11948761731 in words is "eleven billion, nine hundred forty-eight million, seven hundred sixty-one thousand, seven hundred thirty-one".