1550247740928 has 480 divisors, whose sum is σ = 4899605664096. Its totient is φ = 469969403904.

The previous prime is 1550247740891. The next prime is 1550247740959. The reversal of 1550247740928 is 8290477420551.

1550247740928 is a `hidden beast` number, since 1 + 5 + 502 + 4 + 7 + 7 + 40 + 92 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 278168350 + ... + 278173922.

Almost surely, 2^{1550247740928} is an apocalyptic number.

1550247740928 is a gapful number since it is divisible by the number (18) 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 1550247740928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449802832048).

1550247740928 is an abundant number, since it is smaller than the sum of its proper divisors (3349357923168).

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

1550247740928 is a wasteful number, since it uses less digits than its factorization.

1550247740928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5734 (or 5715 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 1550247740928 in words is "one trillion, five hundred fifty billion, two hundred forty-seven million, seven hundred forty thousand, nine hundred twenty-eight".