3977801051 has 4 divisors (see below), whose sum is σ = 4546058352. Its totient is φ = 3409543752.

The previous prime is 3977801021. The next prime is 3977801071. The reversal of 3977801051 is 1501087793.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3977801051 - 2¹⁰ = 3977800027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3977801021) 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, 284128640 + ... + 284128653.

It is an arithmetic number, because the mean of its divisors is an integer number (1136514588).

Almost surely, 2^3977801051 is an apocalyptic number.

3977801051 is a deficient number, since it is larger than the sum of its proper divisors (568257301).

3977801051 is an equidigital number, since it uses as much as digits as its factorization.

3977801051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568257300.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 3977801051 is about 63069.8109320141. The cubic root of 3977801051 is about 1584.4590498750.

The spelling of 3977801051 in words is "three billion, nine hundred seventy-seven million, eight hundred one thousand, fifty-one".