69040532736 has 720 divisors, whose sum is σ = 254644790400. Its totient is φ = 18533007360.

The previous prime is 69040532723. The next prime is 69040532741. The reversal of 69040532736 is 63723504096.

69040532736 is a `hidden beast` number, since 6 + 9 + 0 + 40 + 532 + 73 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 69040532691 and 69040532700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 120911331 + ... + 120911901.

It is an arithmetic number, because the mean of its divisors is an integer number (353673320).

Almost surely, 2^69040532736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69040532736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127322395200).

69040532736 is an abundant number, since it is smaller than the sum of its proper divisors (185604257664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69040532736 is an equidigital number, since it uses as much as digits as its factorization.

69040532736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 69040532736 in words is "sixty-nine billion, forty million, five hundred thirty-two thousand, seven hundred thirty-six".