7115751621001 has 4 divisors (see below), whose sum is σ = 7345291995904. Its totient is φ = 6886211246100.

The previous prime is 7115751620987. The next prime is 7115751621029. The reversal of 7115751621001 is 1001261575117.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7115751621001 - 2¹⁵ = 7115751588233 is a prime.

It is a super-2 number, since 2×7115751621001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7115751621301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114770187405 + ... + 114770187466.

It is an arithmetic number, because the mean of its divisors is an integer number (1836322998976).

Almost surely, 2^{7115751621001} is an apocalyptic number.

It is an amenable number.

7115751621001 is a deficient number, since it is larger than the sum of its proper divisors (229540374903).

7115751621001 is a wasteful number, since it uses less digits than its factorization.

7115751621001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229540374902.

The product of its (nonzero) digits is 14700, while the sum is 37.

The spelling of 7115751621001 in words is "seven trillion, one hundred fifteen billion, seven hundred fifty-one million, six hundred twenty-one thousand, one".