4687773991 has 8 divisors (see below), whose sum is σ = 4967701200. Its totient is φ = 4415732160.

The previous prime is 4687773943. The next prime is 4687774019. The reversal of 4687773991 is 1993777864.

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 4687773991 - 2²¹ = 4685676839 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 (4687773901) 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, 1970121 + ... + 1972498.

It is an arithmetic number, because the mean of its divisors is an integer number (620962650).

Almost surely, 2^4687773991 is an apocalyptic number.

4687773991 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4687773991 is a deficient number, since it is larger than the sum of its proper divisors (279927209).

4687773991 is a wasteful number, since it uses less digits than its factorization.

4687773991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942689.

The product of its digits is 16003008, while the sum is 61.

The square root of 4687773991 is about 68467.3206062571. The cubic root of 4687773991 is about 1673.6149823218.

The spelling of 4687773991 in words is "four billion, six hundred eighty-seven million, seven hundred seventy-three thousand, nine hundred ninety-one".