40869297744 has 160 divisors (see below), whose sum is σ = 116225608704. Its totient is φ = 12272394240.

The previous prime is 40869297727. The next prime is 40869297827. The reversal of 40869297744 is 44779296804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49658517 + ... + 49659339.

Almost surely, 2^40869297744 is an apocalyptic number.

40869297744 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40869297744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58112804352).

40869297744 is an abundant number, since it is smaller than the sum of its proper divisors (75356310960).

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

40869297744 is a wasteful number, since it uses less digits than its factorization.

40869297744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 40869297744 in words is "forty billion, eight hundred sixty-nine million, two hundred ninety-seven thousand, seven hundred forty-four".