2451356032420 has 48 divisors (see below), whose sum is σ = 5151591603648. Its totient is φ = 979829585280.

The previous prime is 2451356032399. The next prime is 2451356032427. The reversal of 2451356032420 is 242306531542.

It is a self number, because there is not a number n which added to its sum of digits gives 2451356032420.

It is not an unprimeable number, because it can be changed into a prime (2451356032427) 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, 193730814 + ... + 193743466.

It is an arithmetic number, because the mean of its divisors is an integer number (107324825076).

Almost surely, 2^{2451356032420} is an apocalyptic number.

2451356032420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2451356032420 is an abundant number, since it is smaller than the sum of its proper divisors (2700235571228).

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

2451356032420 is a wasteful number, since it uses less digits than its factorization.

2451356032420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18940 (or 18938 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 2451356032420 in words is "two trillion, four hundred fifty-one billion, three hundred fifty-six million, thirty-two thousand, four hundred twenty".