71428501363261 has 8 divisors (see below), whose sum is σ = 83016175919040. Its totient is φ = 60186727540608.

The previous prime is 71428501363237. The next prime is 71428501363301. The reversal of 71428501363261 is 16236310582417.

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

It is not a de Polignac number, because 71428501363261 - 2²⁷ = 71428367145533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71428501363061) 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, 86475182836 + ... + 86475183661.

It is an arithmetic number, because the mean of its divisors is an integer number (10377021989880).

Almost surely, 2^{71428501363261} is an apocalyptic number.

It is an amenable number.

71428501363261 is a deficient number, since it is larger than the sum of its proper divisors (11587674555779).

71428501363261 is a wasteful number, since it uses less digits than its factorization.

71428501363261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172950366563.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 71428501363261 in words is "seventy-one trillion, four hundred twenty-eight billion, five hundred one million, three hundred sixty-three thousand, two hundred sixty-one".