7788198701 has 4 divisors (see below), whose sum is σ = 7789311552. Its totient is φ = 7787085852.

The previous prime is 7788198697. The next prime is 7788198703. The reversal of 7788198701 is 1078918877.

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 7788198701 - 2² = 7788198697 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 (7788198703) 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, 545861 + ... + 559946.

It is an arithmetic number, because the mean of its divisors is an integer number (1947327888).

Almost surely, 2^7788198701 is an apocalyptic number.

It is an amenable number.

7788198701 is a deficient number, since it is larger than the sum of its proper divisors (1112851).

7788198701 is a wasteful number, since it uses less digits than its factorization.

7788198701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112850.

The product of its (nonzero) digits is 1580544, while the sum is 56.

The square root of 7788198701 is about 88250.7716736800. The cubic root of 7788198701 is about 1982.1917963203.

The spelling of 7788198701 in words is "seven billion, seven hundred eighty-eight million, one hundred ninety-eight thousand, seven hundred one".