83776887153 has 12 divisors (see below), whose sum is σ = 122258597188. Its totient is φ = 55275471360.

The previous prime is 83776887137. The next prime is 83776887193. The reversal of 83776887153 is 35178867738.

It can be written as a sum of positive squares in 2 ways, for example, as 61410787344 + 22366099809 = 247812^2 + 149553^2 .

It is not a de Polignac number, because 83776887153 - 2⁴ = 83776887137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83776887193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47981308 + ... + 47983053.

Almost surely, 2^83776887153 is an apocalyptic number.

It is an amenable number.

83776887153 is a deficient number, since it is larger than the sum of its proper divisors (38481710035).

83776887153 is a wasteful number, since it uses less digits than its factorization.

83776887153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95964464 (or 95964461 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The spelling of 83776887153 in words is "eighty-three billion, seven hundred seventy-six million, eight hundred eighty-seven thousand, one hundred fifty-three".