3980278077 has 8 divisors (see below), whose sum is σ = 5478232320. Its totient is φ = 2567921280.

The previous prime is 3980278069. The next prime is 3980278091. The reversal of 3980278077 is 7708720893.

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

It is not a de Polignac number, because 3980278077 - 2³ = 3980278069 is a prime.

It is a super-2 number, since 2×3980278077² = 31685227140493635858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3980278067) 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, 21399252 + ... + 21399437.

It is an arithmetic number, because the mean of its divisors is an integer number (684779040).

Almost surely, 2^3980278077 is an apocalyptic number.

It is an amenable number.

3980278077 is a deficient number, since it is larger than the sum of its proper divisors (1497954243).

3980278077 is a wasteful number, since it uses less digits than its factorization.

3980278077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42798723.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The square root of 3980278077 is about 63089.4450522431. The cubic root of 3980278077 is about 1584.7878690585.

The spelling of 3980278077 in words is "three billion, nine hundred eighty million, two hundred seventy-eight thousand, seventy-seven".