1550113071428 has 24 divisors (see below), whose sum is σ = 2813808331488. Its totient is φ = 746661658176.

The previous prime is 1550113071401. The next prime is 1550113071439. The reversal of 1550113071428 is 8241703110551.

It is a junction number, because it is equal to n+sod(n) for n = 1550113071391 and 1550113071400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61715426 + ... + 61740537.

It is an arithmetic number, because the mean of its divisors is an integer number (117242013812).

Almost surely, 2^{1550113071428} is an apocalyptic number.

It is an amenable number.

1550113071428 is a deficient number, since it is larger than the sum of its proper divisors (1263695260060).

1550113071428 is a wasteful number, since it uses less digits than its factorization.

1550113071428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123456083 (or 123456081 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 38.

Adding to 1550113071428 its reverse (8241703110551), we get a palindrome (9791816181979).

The spelling of 1550113071428 in words is "one trillion, five hundred fifty billion, one hundred thirteen million, seventy-one thousand, four hundred twenty-eight".