1351705447725 has 96 divisors (see below), whose sum is σ = 2369738993664. Its totient is φ = 678427833600.

The previous prime is 1351705447621. The next prime is 1351705447747. The reversal of 1351705447725 is 5277445071531.

It is not a de Polignac number, because 1351705447725 - 2¹¹ = 1351705445677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98578620 + ... + 98592330.

It is an arithmetic number, because the mean of its divisors is an integer number (24684781184).

Almost surely, 2^{1351705447725} is an apocalyptic number.

1351705447725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1351705447725 is a deficient number, since it is larger than the sum of its proper divisors (1018033545939).

1351705447725 is a wasteful number, since it uses less digits than its factorization.

1351705447725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14667 (or 14662 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 51.

The spelling of 1351705447725 in words is "one trillion, three hundred fifty-one billion, seven hundred five million, four hundred forty-seven thousand, seven hundred twenty-five".