637621561045142 has 8 divisors (see below), whose sum is σ = 957026768136600. Its totient is φ = 318612638332944.

The previous prime is 637621561045127. The next prime is 637621561045159. The reversal of 637621561045142 is 241540165126736.

637621561045142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×637621561045142² (a number of 30 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 3 ways as a sum of consecutive naturals, for example, 99071090792 + ... + 99071097227.

It is an arithmetic number, because the mean of its divisors is an integer number (119628346017075).

Almost surely, 2^{637621561045142} is an apocalyptic number.

637621561045142 is a deficient number, since it is larger than the sum of its proper divisors (319405207091458).

637621561045142 is a wasteful number, since it uses less digits than its factorization.

637621561045142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198142189630.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 637621561045142 in words is "six hundred thirty-seven trillion, six hundred twenty-one billion, five hundred sixty-one million, forty-five thousand, one hundred forty-two".