1385772678375 has 64 divisors (see below), whose sum is σ = 2460541724160. Its totient is φ = 690588115200.

The previous prime is 1385772678361. The next prime is 1385772678403. The reversal of 1385772678375 is 5738762775831.

It is not a de Polignac number, because 1385772678375 - 2⁸ = 1385772678119 is a prime.

It is a super-2 number, since 2×1385772678375² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 812029 + ... + 1852278.

It is an arithmetic number, because the mean of its divisors is an integer number (38445964440).

Almost surely, 2^{1385772678375} is an apocalyptic number.

1385772678375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385772678375 is a deficient number, since it is larger than the sum of its proper divisors (1074769045785).

1385772678375 is a wasteful number, since it uses less digits than its factorization.

1385772678375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664417 (or 2664407 counting only the distinct ones).

The product of its digits is 414892800, while the sum is 69.

The spelling of 1385772678375 in words is "one trillion, three hundred eighty-five billion, seven hundred seventy-two million, six hundred seventy-eight thousand, three hundred seventy-five".