6926978901 has 4 divisors (see below), whose sum is σ = 9235971872. Its totient is φ = 4617985932.

The previous prime is 6926978881. The next prime is 6926978911. The reversal of 6926978901 is 1098796296.

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 not a de Polignac number, because 6926978901 - 2⁵ = 6926978869 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 (6926978911) 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, 1154496481 + ... + 1154496486.

It is an arithmetic number, because the mean of its divisors is an integer number (2308992968).

Almost surely, 2^6926978901 is an apocalyptic number.

It is an amenable number.

6926978901 is a deficient number, since it is larger than the sum of its proper divisors (2308992971).

6926978901 is a wasteful number, since it uses less digits than its factorization.

6926978901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308992970.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The square root of 6926978901 is about 83228.4740999137. The cubic root of 6926978901 is about 1906.2562836507.

The spelling of 6926978901 in words is "six billion, nine hundred twenty-six million, nine hundred seventy-eight thousand, nine hundred one".