40691245296 has 160 divisors (see below), whose sum is σ = 117393375232. Its totient is φ = 12060887040.

The previous prime is 40691245213. The next prime is 40691245297. The reversal of 40691245296 is 69254219604.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40691245297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4308996 + ... + 4318428.

Almost surely, 2^40691245296 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 40691245296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58696687616).

40691245296 is an abundant number, since it is smaller than the sum of its proper divisors (76702129936).

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

40691245296 is a wasteful number, since it uses less digits than its factorization.

40691245296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711 (or 9705 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 40691245296 in words is "forty billion, six hundred ninety-one million, two hundred forty-five thousand, two hundred ninety-six".