5121554142000 has 160 divisors (see below), whose sum is σ = 16580409303744. Its totient is φ = 1360080384000.

The previous prime is 5121554141969. The next prime is 5121554142017. The reversal of 5121554142000 is 2414551215.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324939 + ... + 3216938.

Almost surely, 2^{5121554142000} is an apocalyptic number.

5121554142000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5121554142000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8290204651872).

5121554142000 is an abundant number, since it is smaller than the sum of its proper divisors (11458855161744).

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

5121554142000 is a wasteful number, since it uses less digits than its factorization.

5121554142000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3542144 (or 3542128 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 5121554142000 its reverse (2414551215), we get a palindrome (5123968693215).

The spelling of 5121554142000 in words is "five trillion, one hundred twenty-one billion, five hundred fifty-four million, one hundred forty-two thousand".