7135488057621 has 128 divisors (see below), whose sum is σ = 12160682606592. Its totient is φ = 3613921920000.

The previous prime is 7135488057619. The next prime is 7135488057647. The reversal of 7135488057621 is 1267508845317.

It is not a de Polignac number, because 7135488057621 - 2¹ = 7135488057619 is a prime.

It is a super-2 number, since 2×7135488057621² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7135488057821) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4117418671 + ... + 4117420403.

It is an arithmetic number, because the mean of its divisors is an integer number (95005332864).

Almost surely, 2^{7135488057621} is an apocalyptic number.

It is an amenable number.

7135488057621 is a deficient number, since it is larger than the sum of its proper divisors (5025194548971).

7135488057621 is a wasteful number, since it uses less digits than its factorization.

7135488057621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 7135488057621 in words is "seven trillion, one hundred thirty-five billion, four hundred eighty-eight million, fifty-seven thousand, six hundred twenty-one".