1552834136728 has 32 divisors (see below), whose sum is σ = 3330020806560. Its totient is φ = 664996527360.

The previous prime is 1552834136723. The next prime is 1552834136747. The reversal of 1552834136728 is 8276314382551.

It is a super-2 number, since 2×1552834136728² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552834136723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10421551 + ... + 10569502.

It is an arithmetic number, because the mean of its divisors is an integer number (104063150205).

Almost surely, 2^{1552834136728} is an apocalyptic number.

It is an amenable number.

1552834136728 is an abundant number, since it is smaller than the sum of its proper divisors (1777186669832).

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

1552834136728 is a wasteful number, since it uses less digits than its factorization.

1552834136728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20992387 (or 20992383 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 55.

The spelling of 1552834136728 in words is "one trillion, five hundred fifty-two billion, eight hundred thirty-four million, one hundred thirty-six thousand, seven hundred twenty-eight".