1258428213508 has 12 divisors (see below), whose sum is σ = 2202264968400. Its totient is φ = 629209651112.

The previous prime is 1258428213463. The next prime is 1258428213547. The reversal of 1258428213508 is 8053128248521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432058 + ... + 1644241.

It is an arithmetic number, because the mean of its divisors is an integer number (183522080700).

Almost surely, 2^{1258428213508} is an apocalyptic number.

It is an amenable number.

1258428213508 is a deficient number, since it is larger than the sum of its proper divisors (943836754892).

1258428213508 is a wasteful number, since it uses less digits than its factorization.

1258428213508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2227826 (or 2227824 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 1258428213508 in words is "one trillion, two hundred fifty-eight billion, four hundred twenty-eight million, two hundred thirteen thousand, five hundred eight".