389324557545 has 128 divisors (see below), whose sum is σ = 803623403520. Its totient is φ = 156198240000.

The previous prime is 389324557507. The next prime is 389324557577. The reversal of 389324557545 is 545755423983.

It is not a de Polignac number, because 389324557545 - 2⁷ = 389324557417 is a prime.

It is a super-2 number, since 2×389324557545² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14989320 + ... + 15015270.

It is an arithmetic number, because the mean of its divisors is an integer number (6278307840).

Almost surely, 2^389324557545 is an apocalyptic number.

389324557545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

389324557545 is an abundant number, since it is smaller than the sum of its proper divisors (414298845975).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389324557545 is a wasteful number, since it uses less digits than its factorization.

389324557545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26427.

The product of its digits is 90720000, while the sum is 60.

The spelling of 389324557545 in words is "three hundred eighty-nine billion, three hundred twenty-four million, five hundred fifty-seven thousand, five hundred forty-five".