2378873358640 has 40 divisors (see below), whose sum is σ = 5555245713840. Its totient is φ = 947357488896.

The previous prime is 2378873358637. The next prime is 2378873358661. The reversal of 2378873358640 is 468533788732.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65479455 + ... + 65515774.

It is an arithmetic number, because the mean of its divisors is an integer number (138881142846).

Almost surely, 2^{2378873358640} is an apocalyptic number.

2378873358640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2378873358640 is an abundant number, since it is smaller than the sum of its proper divisors (3176372355200).

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

2378873358640 is a wasteful number, since it uses less digits than its factorization.

2378873358640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130995469 (or 130995463 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 64.

The spelling of 2378873358640 in words is "two trillion, three hundred seventy-eight billion, eight hundred seventy-three million, three hundred fifty-eight thousand, six hundred forty".