2861633240040 has 96 divisors (see below), whose sum is σ = 8823195470880. Its totient is φ = 742477771008.

The previous prime is 2861633240023. The next prime is 2861633240047. The reversal of 2861633240040 is 400423361682.

It is not an unprimeable number, because it can be changed into a prime (2861633240047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8545342 + ... + 8873901.

It is an arithmetic number, because the mean of its divisors is an integer number (91908286155).

Almost surely, 2^{2861633240040} is an apocalyptic number.

2861633240040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2861633240040 is an abundant number, since it is smaller than the sum of its proper divisors (5961562230840).

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

2861633240040 is a wasteful number, since it uses less digits than its factorization.

2861633240040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17419331 (or 17419290 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

The spelling of 2861633240040 in words is "two trillion, eight hundred sixty-one billion, six hundred thirty-three million, two hundred forty thousand, forty".