389098990078 has 4 divisors (see below), whose sum is σ = 583648485120. Its totient is φ = 194549495038.

The previous prime is 389098990067. The next prime is 389098990127. The reversal of 389098990078 is 870099890983.

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

It is a junction number, because it is equal to n+sod(n) for n = 389098989989 and 389098990016.

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, 97274747518 + ... + 97274747521.

It is an arithmetic number, because the mean of its divisors is an integer number (145912121280).

Almost surely, 2^389098990078 is an apocalyptic number.

389098990078 is a deficient number, since it is larger than the sum of its proper divisors (194549495042).

389098990078 is a wasteful number, since it uses less digits than its factorization.

389098990078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194549495041.

The product of its (nonzero) digits is 70543872, while the sum is 70.

The spelling of 389098990078 in words is "three hundred eighty-nine billion, ninety-eight million, nine hundred ninety thousand, seventy-eight".