2542802518420 has 48 divisors (see below), whose sum is σ = 5475692855808. Its totient is φ = 991303389440.

The previous prime is 2542802518391. The next prime is 2542802518423. The reversal of 2542802518420 is 248152082452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542802518423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771244 + ... + 2383363.

It is an arithmetic number, because the mean of its divisors is an integer number (114076934496).

Almost surely, 2^{2542802518420} is an apocalyptic number.

2542802518420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542802518420 is an abundant number, since it is smaller than the sum of its proper divisors (2932890337388).

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

2542802518420 is a wasteful number, since it uses less digits than its factorization.

2542802518420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155640 (or 3155638 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 43.

The spelling of 2542802518420 in words is "two trillion, five hundred forty-two billion, eight hundred two million, five hundred eighteen thousand, four hundred twenty".