40001761642152 has 32 divisors (see below), whose sum is σ = 100004680198080. Its totient is φ = 13333883735040.

The previous prime is 40001761642111. The next prime is 40001761642159. The reversal of 40001761642152 is 25124616710004.

It is a super-2 number, since 2×40001761642152² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40001761642152.

It is not an unprimeable number, because it can be changed into a prime (40001761642159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7409877 + ... + 11615067.

It is an arithmetic number, because the mean of its divisors is an integer number (3125146256190).

Almost surely, 2^{40001761642152} is an apocalyptic number.

It is an amenable number.

40001761642152 is an abundant number, since it is smaller than the sum of its proper divisors (60002918555928).

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

40001761642152 is a wasteful number, since it uses less digits than its factorization.

40001761642152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601553 (or 4601549 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 40001761642152 in words is "forty trillion, one billion, seven hundred sixty-one million, six hundred forty-two thousand, one hundred fifty-two".