1534173891072 has 480 divisors, whose sum is σ = 4400990193600. Its totient is φ = 474546831360.

The previous prime is 1534173891023. The next prime is 1534173891079. The reversal of 1534173891072 is 2701983714351.

It is not an unprimeable number, because it can be changed into a prime (1534173891079) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4395913554 + ... + 4395913902.

It is an arithmetic number, because the mean of its divisors is an integer number (9168729570).

Almost surely, 2^{1534173891072} is an apocalyptic number.

1534173891072 is a gapful number since it is divisible by the number (12) 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 1534173891072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2200495096800).

1534173891072 is an abundant number, since it is smaller than the sum of its proper divisors (2866816302528).

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

1534173891072 is an equidigital number, since it uses as much as digits as its factorization.

1534173891072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 1534173891072 in words is "one trillion, five hundred thirty-four billion, one hundred seventy-three million, eight hundred ninety-one thousand, seventy-two".