69489019731 has 16 divisors (see below), whose sum is σ = 93569914880. Its totient is φ = 45867245760.

The previous prime is 69489019703. The next prime is 69489019741. The reversal of 69489019731 is 13791098496.

It is not a de Polignac number, because 69489019731 - 2⁷ = 69489019603 is a prime.

It is a super-2 number, since 2×69489019731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69489019741) 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, 1798110 + ... + 1836348.

It is an arithmetic number, because the mean of its divisors is an integer number (5848119680).

Almost surely, 2^69489019731 is an apocalyptic number.

69489019731 is a deficient number, since it is larger than the sum of its proper divisors (24080895149).

69489019731 is a wasteful number, since it uses less digits than its factorization.

69489019731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44226.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 69489019731 in words is "sixty-nine billion, four hundred eighty-nine million, nineteen thousand, seven hundred thirty-one".