1318435143650 has 48 divisors (see below), whose sum is σ = 2733201804960. Its totient is φ = 470228256000.

The previous prime is 1318435143589. The next prime is 1318435143671. The reversal of 1318435143650 is 563415348131.

It is a super-2 number, since 2×1318435143650² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40802276 + ... + 40834575.

It is an arithmetic number, because the mean of its divisors is an integer number (56941704270).

Almost surely, 2^{1318435143650} is an apocalyptic number.

1318435143650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1318435143650 is an abundant number, since it is smaller than the sum of its proper divisors (1414766661310).

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

1318435143650 is a wasteful number, since it uses less digits than its factorization.

1318435143650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81636899 (or 81636894 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1318435143650 in words is "one trillion, three hundred eighteen billion, four hundred thirty-five million, one hundred forty-three thousand, six hundred fifty".