2148391534516 has 24 divisors (see below), whose sum is σ = 3864780377640. Its totient is φ = 1044220931712.

The previous prime is 2148391534493. The next prime is 2148391534517. The reversal of 2148391534516 is 6154351938412.

It can be written as a sum of positive squares in 4 ways, for example, as 810367241616 + 1338024292900 = 900204^2 + 1156730^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148391534517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6380575 + ... + 6708838.

It is an arithmetic number, because the mean of its divisors is an integer number (161032515735).

Almost surely, 2^{2148391534516} is an apocalyptic number.

It is an amenable number.

2148391534516 is a deficient number, since it is larger than the sum of its proper divisors (1716388843124).

2148391534516 is a wasteful number, since it uses less digits than its factorization.

2148391534516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13090563 (or 13090561 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 52.

The spelling of 2148391534516 in words is "two trillion, one hundred forty-eight billion, three hundred ninety-one million, five hundred thirty-four thousand, five hundred sixteen".