40000801536 has 504 divisors, whose sum is σ = 130694382000. Its totient is φ = 12164898816.

The previous prime is 40000801531. The next prime is 40000801571. The reversal of 40000801536 is 63510800004.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40000801531) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 102829630 + ... + 102830018.

It is an arithmetic number, because the mean of its divisors is an integer number (259314250).

Almost surely, 2^40000801536 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 40000801536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65347191000).

40000801536 is an abundant number, since it is smaller than the sum of its proper divisors (90693580464).

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

40000801536 is an equidigital number, since it uses as much as digits as its factorization.

40000801536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 40000801536 in words is "forty billion, eight hundred one thousand, five hundred thirty-six".