258033026078 has 4 divisors (see below), whose sum is σ = 387049539120. Its totient is φ = 129016513038.

The previous prime is 258033026057. The next prime is 258033026089. The reversal of 258033026078 is 870620330852.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64508256518 + ... + 64508256521.

It is an arithmetic number, because the mean of its divisors is an integer number (96762384780).

Almost surely, 2^258033026078 is an apocalyptic number.

258033026078 is a deficient number, since it is larger than the sum of its proper divisors (129016513042).

258033026078 is a wasteful number, since it uses less digits than its factorization.

258033026078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129016513041.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 258033026078 in words is "two hundred fifty-eight billion, thirty-three million, twenty-six thousand, seventy-eight".