5147142213261 has 4 divisors (see below), whose sum is σ = 6862856284352. Its totient is φ = 3431428142172.

The previous prime is 5147142213173. The next prime is 5147142213277. The reversal of 5147142213261 is 1623122417415.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5147142213261 - 2⁹ = 5147142212749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5147142213281) 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, 857857035541 + ... + 857857035546.

It is an arithmetic number, because the mean of its divisors is an integer number (1715714071088).

Almost surely, 2^{5147142213261} is an apocalyptic number.

It is an amenable number.

5147142213261 is a deficient number, since it is larger than the sum of its proper divisors (1715714071091).

5147142213261 is a wasteful number, since it uses less digits than its factorization.

5147142213261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715714071090.

The product of its digits is 80640, while the sum is 39.

The spelling of 5147142213261 in words is "five trillion, one hundred forty-seven billion, one hundred forty-two million, two hundred thirteen thousand, two hundred sixty-one".