6154844138620 has 96 divisors (see below), whose sum is σ = 13613498539200. Its totient is φ = 2334003861504.

The previous prime is 6154844138551. The next prime is 6154844138627. The reversal of 6154844138620 is 268314484516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6154844138627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29084232 + ... + 29295088.

It is an arithmetic number, because the mean of its divisors is an integer number (141807276450).

Almost surely, 2^{6154844138620} 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 6154844138620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6806749269600).

6154844138620 is an abundant number, since it is smaller than the sum of its proper divisors (7458654400580).

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

6154844138620 is a wasteful number, since it uses less digits than its factorization.

6154844138620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211807 (or 211805 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 6154844138620 in words is "six trillion, one hundred fifty-four billion, eight hundred forty-four million, one hundred thirty-eight thousand, six hundred twenty".