47398156493 has 2 divisors, whose sum is σ = 47398156494. Its totient is φ = 47398156492.

The previous prime is 47398156489. The next prime is 47398156571. The reversal of 47398156493 is 39465189374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43788910564 + 3609245929 = 209258^2 + 60077^2 .

It is a cyclic number.

It is not a de Polignac number, because 47398156493 - 2² = 47398156489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47398156483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23699078246 + 23699078247.

It is an arithmetic number, because the mean of its divisors is an integer number (23699078247).

Almost surely, 2^47398156493 is an apocalyptic number.

It is an amenable number.

47398156493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47398156493 is an equidigital number, since it uses as much as digits as its factorization.

47398156493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 47398156493 in words is "forty-seven billion, three hundred ninety-eight million, one hundred fifty-six thousand, four hundred ninety-three".