19486748527 has 2 divisors, whose sum is σ = 19486748528. Its totient is φ = 19486748526.

The previous prime is 19486748497. The next prime is 19486748579. The reversal of 19486748527 is 72584768491.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19486748527 - 2¹¹ = 19486746479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19486748587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9743374263 + 9743374264.

It is an arithmetic number, because the mean of its divisors is an integer number (9743374264).

Almost surely, 2^19486748527 is an apocalyptic number.

19486748527 is a deficient number, since it is larger than the sum of its proper divisors (1).

19486748527 is an equidigital number, since it uses as much as digits as its factorization.

19486748527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27095040, while the sum is 61.

It can be divided in two parts, 1948674 and 8527, that added together give a square (1957201 = 1399²).

The spelling of 19486748527 in words is "nineteen billion, four hundred eighty-six million, seven hundred forty-eight thousand, five hundred twenty-seven".