1977286852347 has 8 divisors (see below), whose sum is σ = 2636641156944. Its totient is φ = 1318061891328.

The previous prime is 1977286852213. The next prime is 1977286852357. The reversal of 1977286852347 is 7432586827791.

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

It is not a de Polignac number, because 1977286852347 - 2¹¹ = 1977286850299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1977286852357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32300218 + ... + 32361375.

It is an arithmetic number, because the mean of its divisors is an integer number (329580144618).

Almost surely, 2^{1977286852347} is an apocalyptic number.

1977286852347 is a deficient number, since it is larger than the sum of its proper divisors (659354304597).

1977286852347 is a wasteful number, since it uses less digits than its factorization.

1977286852347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64671789.

The product of its digits is 284497920, while the sum is 69.

The spelling of 1977286852347 in words is "one trillion, nine hundred seventy-seven billion, two hundred eighty-six million, eight hundred fifty-two thousand, three hundred forty-seven".