2519542195442 has 16 divisors (see below), whose sum is σ = 3786269538240. Its totient is φ = 1257454026192.

The previous prime is 2519542195441. The next prime is 2519542195447. The reversal of 2519542195442 is 2445912459152.

It is a super-2 number, since 2×2519542195442² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2519542195441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2597273 + ... + 3432915.

It is an arithmetic number, because the mean of its divisors is an integer number (236641846140).

Almost surely, 2^{2519542195442} is an apocalyptic number.

2519542195442 is a deficient number, since it is larger than the sum of its proper divisors (1266727342798).

2519542195442 is a wasteful number, since it uses less digits than its factorization.

2519542195442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838417.

The product of its digits is 5184000, while the sum is 53.

The spelling of 2519542195442 in words is "two trillion, five hundred nineteen billion, five hundred forty-two million, one hundred ninety-five thousand, four hundred forty-two".