7987537101 has 4 divisors (see below), whose sum is σ = 10650049472. Its totient is φ = 5325024732.

The previous prime is 7987537099. The next prime is 7987537109. The reversal of 7987537101 is 1017357897.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1017357897 = 3 ⋅339119299.

It is not a de Polignac number, because 7987537101 - 2¹ = 7987537099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987537109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331256181 + ... + 1331256186.

It is an arithmetic number, because the mean of its divisors is an integer number (2662512368).

Almost surely, 2^7987537101 is an apocalyptic number.

It is an amenable number.

7987537101 is a deficient number, since it is larger than the sum of its proper divisors (2662512371).

7987537101 is a wasteful number, since it uses less digits than its factorization.

7987537101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2662512370.

The product of its (nonzero) digits is 370440, while the sum is 48.

The square root of 7987537101 is about 89373.0222214735. The cubic root of 7987537101 is about 1998.9608852971.

The spelling of 7987537101 in words is "seven billion, nine hundred eighty-seven million, five hundred thirty-seven thousand, one hundred one".