77015020230 has 96 divisors (see below), whose sum is σ = 202985153280. Its totient is φ = 20256505920.

The previous prime is 77015020193. The next prime is 77015020241. The reversal of 77015020230 is 3202051077.

It is a super-3 number, since 3×77015020230³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77015020194 and 77015020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4705401 + ... + 4721739.

It is an arithmetic number, because the mean of its divisors is an integer number (2114428680).

Almost surely, 2^77015020230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77015020230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101492576640).

77015020230 is an abundant number, since it is smaller than the sum of its proper divisors (125970133050).

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

77015020230 is a wasteful number, since it uses less digits than its factorization.

77015020230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17066 (or 17063 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The spelling of 77015020230 in words is "seventy-seven billion, fifteen million, twenty thousand, two hundred thirty".