1557380537347 has 8 divisors (see below), whose sum is σ = 1574932042800. Its totient is φ = 1539830206464.

The previous prime is 1557380537213. The next prime is 1557380537359. The reversal of 1557380537347 is 7437350837551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1557380537347 - 2¹⁵ = 1557380504579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1557380537291 and 1557380537300.

It is not an unprimeable number, because it can be changed into a prime (1557380537387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2524668 + ... + 3080374.

It is an arithmetic number, because the mean of its divisors is an integer number (196866505350).

Almost surely, 2^{1557380537347} is an apocalyptic number.

1557380537347 is a deficient number, since it is larger than the sum of its proper divisors (17551505453).

1557380537347 is an equidigital number, since it uses as much as digits as its factorization.

1557380537347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587285.

The product of its (nonzero) digits is 37044000, while the sum is 58.

The spelling of 1557380537347 in words is "one trillion, five hundred fifty-seven billion, three hundred eighty million, five hundred thirty-seven thousand, three hundred forty-seven".