258188969380 has 48 divisors (see below), whose sum is σ = 544507222896. Its totient is φ = 102835814400.

The previous prime is 258188969371. The next prime is 258188969431. The reversal of 258188969380 is 83969881852.

It can be written as a sum of positive squares in 8 ways, for example, as 22482603364 + 235706366016 = 149942^2 + 485496^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16959532 + ... + 16974748.

It is an arithmetic number, because the mean of its divisors is an integer number (11343900477).

Almost surely, 2^258188969380 is an apocalyptic number.

258188969380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258188969380 is an abundant number, since it is smaller than the sum of its proper divisors (286318253516).

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

258188969380 is a wasteful number, since it uses less digits than its factorization.

258188969380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18784 (or 18782 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 67.

The spelling of 258188969380 in words is "two hundred fifty-eight billion, one hundred eighty-eight million, nine hundred sixty-nine thousand, three hundred eighty".