1358538051947 has 4 divisors (see below), whose sum is σ = 1359454127640. Its totient is φ = 1357621976256.

The previous prime is 1358538051931. The next prime is 1358538051979. The reversal of 1358538051947 is 7491508358531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1358538051947 - 2⁴ = 1358538051931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1358538056947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458035622 + ... + 458038587.

It is an arithmetic number, because the mean of its divisors is an integer number (339863531910).

Almost surely, 2^{1358538051947} is an apocalyptic number.

1358538051947 is a deficient number, since it is larger than the sum of its proper divisors (916075693).

1358538051947 is an equidigital number, since it uses as much as digits as its factorization.

1358538051947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916075692.

The product of its (nonzero) digits is 18144000, while the sum is 59.

The spelling of 1358538051947 in words is "one trillion, three hundred fifty-eight billion, five hundred thirty-eight million, fifty-one thousand, nine hundred forty-seven".