71422562501 has 8 divisors (see below), whose sum is σ = 71959059480. Its totient is φ = 70886285568.

The previous prime is 71422562489. The next prime is 71422562509. The reversal of 71422562501 is 10526522417.

It is a Cunningham number, because it is equal to 267250²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 71422562500 = 1^2 + 267250^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71422562501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71422562509) 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, 628295 + ... + 733211.

It is an arithmetic number, because the mean of its divisors is an integer number (8994882435).

Almost surely, 2^71422562501 is an apocalyptic number.

It is an amenable number.

71422562501 is a deficient number, since it is larger than the sum of its proper divisors (536496979).

71422562501 is a wasteful number, since it uses less digits than its factorization.

71422562501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110023.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 71422562501 in words is "seventy-one billion, four hundred twenty-two million, five hundred sixty-two thousand, five hundred one".