102454551543512 has 128 divisors (see below), whose sum is σ = 228938999477760. Its totient is φ = 42069714785280.

The previous prime is 102454551543467. The next prime is 102454551543517. The reversal of 102454551543512 is 215345155454201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102454551543517) 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, 611618087 + ... + 611785577.

It is an arithmetic number, because the mean of its divisors is an integer number (1788585933420).

Almost surely, 2^{102454551543512} 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 102454551543512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114469499738880).

102454551543512 is an abundant number, since it is smaller than the sum of its proper divisors (126484447934248).

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

102454551543512 is a wasteful number, since it uses less digits than its factorization.

102454551543512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172393 (or 172389 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 47.

The spelling of 102454551543512 in words is "one hundred two trillion, four hundred fifty-four billion, five hundred fifty-one million, five hundred forty-three thousand, five hundred twelve".