2578943675040 has 96 divisors (see below), whose sum is σ = 8601535696320. Its totient is φ = 647264292864.

The previous prime is 2578943674997. The next prime is 2578943675071. The reversal of 2578943675040 is 405763498752.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2578943675040² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158015350 + ... + 158031669.

It is an arithmetic number, because the mean of its divisors is an integer number (89599330170).

Almost surely, 2^{2578943675040} is an apocalyptic number.

2578943675040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2578943675040 is an abundant number, since it is smaller than the sum of its proper divisors (6022592021280).

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

2578943675040 is a wasteful number, since it uses less digits than its factorization.

2578943675040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316047054 (or 316047046 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 2578943675040 in words is "two trillion, five hundred seventy-eight billion, nine hundred forty-three million, six hundred seventy-five thousand, forty".