30257620210742 has 32 divisors (see below), whose sum is σ = 45762256298880. Its totient is φ = 15003687029760.

The previous prime is 30257620210711. The next prime is 30257620210757. The reversal of 30257620210742 is 24701202675203.

It is a self number, because there is not a number n which added to its sum of digits gives 30257620210742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4634338934 + ... + 4634345462.

It is an arithmetic number, because the mean of its divisors is an integer number (1430070509340).

Almost surely, 2^{30257620210742} is an apocalyptic number.

30257620210742 is a deficient number, since it is larger than the sum of its proper divisors (15504636088138).

30257620210742 is a wasteful number, since it uses less digits than its factorization.

30257620210742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15308.

The product of its (nonzero) digits is 282240, while the sum is 41.

Adding to 30257620210742 its reverse (24701202675203), we get a palindrome (54958822885945).

The spelling of 30257620210742 in words is "thirty trillion, two hundred fifty-seven billion, six hundred twenty million, two hundred ten thousand, seven hundred forty-two".