258960343828 has 6 divisors (see below), whose sum is σ = 453180601706. Its totient is φ = 129480171912.

The previous prime is 258960343823. The next prime is 258960343861. The reversal of 258960343828 is 828343069852.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 196309252624 + 62651091204 = 443068^2 + 250302^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258960343823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32370042975 + ... + 32370042982.

Almost surely, 2^258960343828 is an apocalyptic number.

It is an amenable number.

258960343828 is a deficient number, since it is larger than the sum of its proper divisors (194220257878).

258960343828 is a wasteful number, since it uses less digits than its factorization.

258960343828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64740085961 (or 64740085959 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 258960343828 in words is "two hundred fifty-eight billion, nine hundred sixty million, three hundred forty-three thousand, eight hundred twenty-eight".