1245372075420 has 48 divisors (see below), whose sum is σ = 3804045614208. Its totient is φ = 301908381760.

The previous prime is 1245372075391. The next prime is 1245372075421. The reversal of 1245372075420 is 245702735421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245372075421) 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, 943463034 + ... + 943464353.

It is an arithmetic number, because the mean of its divisors is an integer number (79250950296).

Almost surely, 2^{1245372075420} is an apocalyptic number.

1245372075420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245372075420 is an abundant number, since it is smaller than the sum of its proper divisors (2558673538788).

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

1245372075420 is a wasteful number, since it uses less digits than its factorization.

1245372075420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886927410 (or 1886927408 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 1245372075420 in words is "one trillion, two hundred forty-five billion, three hundred seventy-two million, seventy-five thousand, four hundred twenty".