258428754866 has 8 divisors (see below), whose sum is σ = 408045402480. Its totient is φ = 122413620708.

The previous prime is 258428754821. The next prime is 258428754869. The reversal of 258428754866 is 668457824852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×258428754866² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (258428754869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400378316 + ... + 3400378391.

It is an arithmetic number, because the mean of its divisors is an integer number (51005675310).

Almost surely, 2^258428754866 is an apocalyptic number.

258428754866 is a deficient number, since it is larger than the sum of its proper divisors (149616647614).

258428754866 is a wasteful number, since it uses less digits than its factorization.

258428754866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800756728.

The product of its digits is 206438400, while the sum is 65.

The spelling of 258428754866 in words is "two hundred fifty-eight billion, four hundred twenty-eight million, seven hundred fifty-four thousand, eight hundred sixty-six".