7630121741557 has 16 divisors (see below), whose sum is σ = 8738741585920. Its totient is φ = 6526167314688.

The previous prime is 7630121741531. The next prime is 7630121741563. The reversal of 7630121741557 is 7551471210367.

It is not a de Polignac number, because 7630121741557 - 2³⁵ = 7595762003189 is a prime.

It is the 2762268-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7630121741557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7630121747557) by changing a digit.

It is a nontrivial repunit in base 2762267.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5578348 + ... + 6810154.

It is an arithmetic number, because the mean of its divisors is an integer number (546171349120).

Almost surely, 2^{7630121741557} is an apocalyptic number.

It is an amenable number.

7630121741557 is a deficient number, since it is larger than the sum of its proper divisors (1108619844363).

7630121741557 is a wasteful number, since it uses less digits than its factorization.

7630121741557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233700.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 7630121741557 in words is "seven trillion, six hundred thirty billion, one hundred twenty-one million, seven hundred forty-one thousand, five hundred fifty-seven".