7387661111 has 8 divisors (see below), whose sum is σ = 8114593920. Its totient is φ = 6694539192.

The previous prime is 7387661093. The next prime is 7387661131. The reversal of 7387661111 is 1111667837.

7387661111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7387661111 - 2²⁶ = 7320552247 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 (7387661131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8452265 + ... + 8453138.

It is an arithmetic number, because the mean of its divisors is an integer number (1014324240).

Almost surely, 2^7387661111 is an apocalyptic number.

7387661111 is a deficient number, since it is larger than the sum of its proper divisors (726932809).

7387661111 is a wasteful number, since it uses less digits than its factorization.

7387661111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16905445.

The product of its digits is 42336, while the sum is 41.

The square root of 7387661111 is about 85951.5044138263. The cubic root of 7387661111 is about 1947.6114617316.

The spelling of 7387661111 in words is "seven billion, three hundred eighty-seven million, six hundred sixty-one thousand, one hundred eleven".