1552078310772 has 96 divisors (see below), whose sum is σ = 4013554406400. Its totient is φ = 462892545280.

The previous prime is 1552078310749. The next prime is 1552078310789. The reversal of 1552078310772 is 2770138702551.

It is a happy number.

It is a super-2 number, since 2×1552078310772² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 2612104 + ... + 3150752.

It is an arithmetic number, because the mean of its divisors is an integer number (41807858400).

Almost surely, 2^{1552078310772} is an apocalyptic number.

1552078310772 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 1552078310772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006777203200).

1552078310772 is an abundant number, since it is smaller than the sum of its proper divisors (2461476095628).

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

1552078310772 is a wasteful number, since it uses less digits than its factorization.

1552078310772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539013 (or 539011 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 48.

The spelling of 1552078310772 in words is "one trillion, five hundred fifty-two billion, seventy-eight million, three hundred ten thousand, seven hundred seventy-two".