1381705395530 has 32 divisors (see below), whose sum is σ = 2524455465984. Its totient is φ = 544375947456.

The previous prime is 1381705395493. The next prime is 1381705395563. The reversal of 1381705395530 is 355935071831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6578519 + ... + 6785301.

It is an arithmetic number, because the mean of its divisors is an integer number (78889233312).

Almost surely, 2^{1381705395530} is an apocalyptic number.

1381705395530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1381705395530 is a deficient number, since it is larger than the sum of its proper divisors (1142750070454).

1381705395530 is a wasteful number, since it uses less digits than its factorization.

1381705395530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216830.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 1381705395530 in words is "one trillion, three hundred eighty-one billion, seven hundred five million, three hundred ninety-five thousand, five hundred thirty".