7198531123896 has 768 divisors, whose sum is σ = 25489271808000. Its totient is φ = 1855908495360.

The previous prime is 7198531123801. The next prime is 7198531123957. The reversal of 7198531123896 is 6983211358917.

7198531123896 is a `hidden beast` number, since 7 + 1 + 9 + 8 + 531 + 1 + 2 + 3 + 8 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 781679740 + ... + 781688948.

It is an arithmetic number, because the mean of its divisors is an integer number (33189156000).

Almost surely, 2^{7198531123896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7198531123896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12744635904000).

7198531123896 is an abundant number, since it is smaller than the sum of its proper divisors (18290740684104).

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

7198531123896 is a wasteful number, since it uses less digits than its factorization.

7198531123896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9394 (or 9378 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 7198531123896 in words is "seven trillion, one hundred ninety-eight billion, five hundred thirty-one million, one hundred twenty-three thousand, eight hundred ninety-six".