28766377071 has 16 divisors (see below), whose sum is σ = 42620077920. Its totient is φ = 19176134400.

The previous prime is 28766377069. The next prime is 28766377091. The reversal of 28766377071 is 17077366782.

It is not a de Polignac number, because 28766377071 - 2¹ = 28766377069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28766376999 and 28766377017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28766377021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418221 + ... + 482121.

It is an arithmetic number, because the mean of its divisors is an integer number (2663754870).

Almost surely, 2^28766377071 is an apocalyptic number.

28766377071 is a deficient number, since it is larger than the sum of its proper divisors (13853700849).

28766377071 is a wasteful number, since it uses less digits than its factorization.

28766377071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80583 (or 80577 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 54.

The spelling of 28766377071 in words is "twenty-eight billion, seven hundred sixty-six million, three hundred seventy-seven thousand, seventy-one".