1550739969348 has 24 divisors (see below), whose sum is σ = 3618964433952. Its totient is φ = 516831727104.

The previous prime is 1550739969341. The next prime is 1550739969379. The reversal of 1550739969348 is 8439699370551.

It is not an unprimeable number, because it can be changed into a prime (1550739969341) 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, 10120290 + ... + 10272377.

It is an arithmetic number, because the mean of its divisors is an integer number (150790184748).

Almost surely, 2^{1550739969348} is an apocalyptic number.

It is an amenable number.

1550739969348 is an abundant number, since it is smaller than the sum of its proper divisors (2068224464604).

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

1550739969348 is a wasteful number, since it uses less digits than its factorization.

1550739969348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20399011 (or 20399009 counting only the distinct ones).

The product of its (nonzero) digits is 220449600, while the sum is 69.

The spelling of 1550739969348 in words is "one trillion, five hundred fifty billion, seven hundred thirty-nine million, nine hundred sixty-nine thousand, three hundred forty-eight".