7652545621 has 16 divisors (see below), whose sum is σ = 9221484160. Its totient is φ = 6203692800.

The previous prime is 7652545603. The next prime is 7652545639. The reversal of 7652545621 is 1265452567.

It is an interprime number because it is at equal distance from previous prime (7652545603) and next prime (7652545639).

It is a cyclic number.

It is not a de Polignac number, because 7652545621 - 2¹⁵ = 7652512853 is a prime.

It is a super-2 number, since 2×7652545621² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7652545321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32065 + ... + 127801.

It is an arithmetic number, because the mean of its divisors is an integer number (576342760).

Almost surely, 2^7652545621 is an apocalyptic number.

It is an amenable number.

7652545621 is a deficient number, since it is larger than the sum of its proper divisors (1568938539).

7652545621 is a wasteful number, since it uses less digits than its factorization.

7652545621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96364.

The product of its digits is 504000, while the sum is 43.

The square root of 7652545621 is about 87478.8295589281. The cubic root of 7652545621 is about 1970.6158690969.

The spelling of 7652545621 in words is "seven billion, six hundred fifty-two million, five hundred forty-five thousand, six hundred twenty-one".