2311885432640 has 168 divisors, whose sum is σ = 6610563067392. Its totient is φ = 767077032960.

The previous prime is 2311885432607. The next prime is 2311885432667. The reversal of 2311885432640 is 462345881132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1892012 + ... + 2864171.

Almost surely, 2^{2311885432640} is an apocalyptic number.

2311885432640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311885432640 is an abundant number, since it is smaller than the sum of its proper divisors (4298677634752).

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

2311885432640 is a wasteful number, since it uses less digits than its factorization.

2311885432640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4756245 (or 4756228 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 47.

The spelling of 2311885432640 in words is "two trillion, three hundred eleven billion, eight hundred eighty-five million, four hundred thirty-two thousand, six hundred forty".