102026677770 has 48 divisors (see below), whose sum is σ = 266255556840. Its totient is φ = 27105965952.

The previous prime is 102026677769. The next prime is 102026677789. The reversal of 102026677770 is 77776620201.

It can be written as a sum of positive squares in 4 ways, for example, as 78927845481 + 23098832289 = 280941^2 + 151983^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2082909 + ... + 2131328.

Almost surely, 2^102026677770 is an apocalyptic number.

102026677770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102026677770 is an abundant number, since it is smaller than the sum of its proper divisors (164228879070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102026677770 is a wasteful number, since it uses less digits than its factorization.

102026677770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214519 (or 4214516 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The spelling of 102026677770 in words is "one hundred two billion, twenty-six million, six hundred seventy-seven thousand, seven hundred seventy".