47494657236451 has 4 divisors (see below), whose sum is σ = 49559642333712. Its totient is φ = 45429672139192.

The previous prime is 47494657236431. The next prime is 47494657236457. The reversal of 47494657236451 is 15463275649474.

It is a happy number.

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 47494657236451 - 2²⁹ = 47494120365539 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47494657236457) 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, 1032492548596 + ... + 1032492548641.

It is an arithmetic number, because the mean of its divisors is an integer number (12389910583428).

Almost surely, 2^{47494657236451} is an apocalyptic number.

47494657236451 is a deficient number, since it is larger than the sum of its proper divisors (2064985097261).

47494657236451 is a wasteful number, since it uses less digits than its factorization.

47494657236451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064985097260.

The product of its digits is 609638400, while the sum is 67.

The spelling of 47494657236451 in words is "forty-seven trillion, four hundred ninety-four billion, six hundred fifty-seven million, two hundred thirty-six thousand, four hundred fifty-one".