40689577032 has 192 divisors, whose sum is σ = 112725950400. Its totient is φ = 12230000640.

The previous prime is 40689577009. The next prime is 40689577037. The reversal of 40689577032 is 23077598604.

It is not an unprimeable number, because it can be changed into a prime (40689577037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46185232 + ... + 46186112.

It is an arithmetic number, because the mean of its divisors is an integer number (587114325).

Almost surely, 2^40689577032 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 40689577032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56362975200).

40689577032 is an abundant number, since it is smaller than the sum of its proper divisors (72036373368).

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

40689577032 is a wasteful number, since it uses less digits than its factorization.

40689577032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1151 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 40689577032 in words is "forty billion, six hundred eighty-nine million, five hundred seventy-seven thousand, thirty-two".