5398890636645 has 48 divisors (see below), whose sum is σ = 10213910021952. Its totient is φ = 2616336602880.

The previous prime is 5398890636631. The next prime is 5398890636653. The reversal of 5398890636645 is 5466360988935.

5398890636645 is a `hidden beast` number, since 5 + 398 + 89 + 0 + 63 + 66 + 45 = 666.

It is not a de Polignac number, because 5398890636645 - 2¹⁷ = 5398890505573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1731144 + ... + 3714113.

It is an arithmetic number, because the mean of its divisors is an integer number (212789792124).

Almost surely, 2^{5398890636645} is an apocalyptic number.

5398890636645 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5398890636645 is a deficient number, since it is larger than the sum of its proper divisors (4815019385307).

5398890636645 is a wasteful number, since it uses less digits than its factorization.

5398890636645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447282 (or 5447279 counting only the distinct ones).

The product of its (nonzero) digits is 1007769600, while the sum is 72.

The spelling of 5398890636645 in words is "five trillion, three hundred ninety-eight billion, eight hundred ninety million, six hundred thirty-six thousand, six hundred forty-five".