1315727215770 has 256 divisors, whose sum is σ = 3700329246720. Its totient is φ = 296047872000.

The previous prime is 1315727215769. The next prime is 1315727215787. The reversal of 1315727215770 is 775127275131.

It is a super-2 number, since 2×1315727215770² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 69104692 + ... + 69123728.

It is an arithmetic number, because the mean of its divisors is an integer number (14454411120).

Almost surely, 2^{1315727215770} is an apocalyptic number.

1315727215770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315727215770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1850164623360).

1315727215770 is an abundant number, since it is smaller than the sum of its proper divisors (2384602030950).

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

1315727215770 is a wasteful number, since it uses less digits than its factorization.

1315727215770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19301.

The product of its (nonzero) digits is 720300, while the sum is 48.

The spelling of 1315727215770 in words is "one trillion, three hundred fifteen billion, seven hundred twenty-seven million, two hundred fifteen thousand, seven hundred seventy".