6988436077 has 8 divisors (see below), whose sum is σ = 8016257792. Its totient is φ = 5967982800.

The previous prime is 6988436069. The next prime is 6988436089. The reversal of 6988436077 is 7706348896.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6988436077 - 2³ = 6988436069 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 (6988436027) 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, 1840074 + ... + 1843867.

It is an arithmetic number, because the mean of its divisors is an integer number (1002032224).

Almost surely, 2^6988436077 is an apocalyptic number.

It is an amenable number.

6988436077 is a deficient number, since it is larger than the sum of its proper divisors (1027821715).

6988436077 is a wasteful number, since it uses less digits than its factorization.

6988436077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684219.

The product of its (nonzero) digits is 12192768, while the sum is 58.

The square root of 6988436077 is about 83596.8664305068. The cubic root of 6988436077 is about 1911.8772217579.

The spelling of 6988436077 in words is "six billion, nine hundred eighty-eight million, four hundred thirty-six thousand, seventy-seven".