2531411643542 has 16 divisors (see below), whose sum is σ = 3827354173440. Its totient is φ = 1255628680488.

The previous prime is 2531411643533. The next prime is 2531411643571. The reversal of 2531411643542 is 2453461141352.

It is a self number, because there is not a number n which added to its sum of digits gives 2531411643542.

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, 2478059 + ... + 3347177.

It is an arithmetic number, because the mean of its divisors is an integer number (239209635840).

Almost surely, 2^{2531411643542} is an apocalyptic number.

2531411643542 is a deficient number, since it is larger than the sum of its proper divisors (1295942529898).

2531411643542 is a wasteful number, since it uses less digits than its factorization.

2531411643542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880715.

The product of its digits is 345600, while the sum is 41.

Adding to 2531411643542 its reverse (2453461141352), we get a palindrome (4984872784894).

The spelling of 2531411643542 in words is "two trillion, five hundred thirty-one billion, four hundred eleven million, six hundred forty-three thousand, five hundred forty-two".