19425745422740 has 24 divisors (see below), whose sum is σ = 43193716293672. Its totient is φ = 7313221806080.

The previous prime is 19425745422739. The next prime is 19425745422763. The reversal of 19425745422740 is 4722454752491.

It can be written as a sum of positive squares in 4 ways, for example, as 7727799531664 + 11697945891076 = 2779892^2 + 3420226^2 .

It is a super-2 number, since 2×19425745422740² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 28567272341 + ... + 28567273020.

It is an arithmetic number, because the mean of its divisors is an integer number (1799738178903).

Almost surely, 2^{19425745422740} is an apocalyptic number.

19425745422740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19425745422740 is an abundant number, since it is smaller than the sum of its proper divisors (23767970870932).

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

19425745422740 is a wasteful number, since it uses less digits than its factorization.

19425745422740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57134545387 (or 57134545385 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 56.

The spelling of 19425745422740 in words is "nineteen trillion, four hundred twenty-five billion, seven hundred forty-five million, four hundred twenty-two thousand, seven hundred forty".