515710257142 has 16 divisors (see below), whose sum is σ = 791670627792. Its totient is φ = 251821795680.

The previous prime is 515710257113. The next prime is 515710257149. The reversal of 515710257142 is 241752017515.

It is a junction number, because it is equal to n+sod(n) for n = 515710257095 and 515710257104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515710257149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161392 + ... + 1028332.

It is an arithmetic number, because the mean of its divisors is an integer number (49479414237).

Almost surely, 2^515710257142 is an apocalyptic number.

515710257142 is a deficient number, since it is larger than the sum of its proper divisors (275960370650).

515710257142 is a wasteful number, since it uses less digits than its factorization.

515710257142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873903.

The product of its (nonzero) digits is 98000, while the sum is 40.

The spelling of 515710257142 in words is "five hundred fifteen billion, seven hundred ten million, two hundred fifty-seven thousand, one hundred forty-two".