84787801051 has 4 divisors (see below), whose sum is σ = 85981995504. Its totient is φ = 83593606600.

The previous prime is 84787801009. The next prime is 84787801069. The reversal of 84787801051 is 15010878748.

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 84787801051 - 2³⁵ = 50428062683 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84787800986 and 84787801004.

It is not an unprimeable number, because it can be changed into a prime (84787801001) 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, 597097120 + ... + 597097261.

It is an arithmetic number, because the mean of its divisors is an integer number (21495498876).

Almost surely, 2^84787801051 is an apocalyptic number.

84787801051 is a deficient number, since it is larger than the sum of its proper divisors (1194194453).

84787801051 is a wasteful number, since it uses less digits than its factorization.

84787801051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194194452.

The product of its (nonzero) digits is 501760, while the sum is 49.

The spelling of 84787801051 in words is "eighty-four billion, seven hundred eighty-seven million, eight hundred one thousand, fifty-one".