1315947686361 has 64 divisors (see below), whose sum is σ = 2319737481216. Its totient is φ = 642422246400.

The previous prime is 1315947686311. The next prime is 1315947686401. The reversal of 1315947686361 is 1636867495131.

It is not a de Polignac number, because 1315947686361 - 2¹³ = 1315947678169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1315947686295 and 1315947686304.

It is not an unprimeable number, because it can be changed into a prime (1315947686311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2342266 + ... + 2849228.

It is an arithmetic number, because the mean of its divisors is an integer number (36245898144).

Almost surely, 2^{1315947686361} is an apocalyptic number.

1315947686361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1315947686361 is a deficient number, since it is larger than the sum of its proper divisors (1003789794855).

1315947686361 is a wasteful number, since it uses less digits than its factorization.

1315947686361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507662.

The product of its digits is 19595520, while the sum is 60.

The spelling of 1315947686361 in words is "one trillion, three hundred fifteen billion, nine hundred forty-seven million, six hundred eighty-six thousand, three hundred sixty-one".