1612903243550 has 24 divisors (see below), whose sum is σ = 3000176889336. Its totient is φ = 645123263840.

The previous prime is 1612903243537. The next prime is 1612903243571. The reversal of 1612903243550 is 553423092161.

It is a super-4 number, since 4×1612903243550⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1612903243498 and 1612903243507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86432 + ... + 1798131.

It is an arithmetic number, because the mean of its divisors is an integer number (125007370389).

Almost surely, 2^{1612903243550} is an apocalyptic number.

1612903243550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1612903243550 is a deficient number, since it is larger than the sum of its proper divisors (1387273645786).

1612903243550 is a wasteful number, since it uses less digits than its factorization.

1612903243550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901692 (or 1901687 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 1612903243550 in words is "one trillion, six hundred twelve billion, nine hundred three million, two hundred forty-three thousand, five hundred fifty".