74271047261 has 8 divisors (see below), whose sum is σ = 79523528760. Its totient is φ = 69116743168.

The previous prime is 74271047243. The next prime is 74271047267. The reversal of 74271047261 is 16274017247.

It can be written as a sum of positive squares in 4 ways, for example, as 1839552100 + 72431495161 = 42890^2 + 269131^2 .

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-74271047261 is a prime.

It is a super-2 number, since 2×74271047261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74271047267) 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, 24542786 + ... + 24545811.

It is an arithmetic number, because the mean of its divisors is an integer number (9940441095).

Almost surely, 2^74271047261 is an apocalyptic number.

It is an amenable number.

74271047261 is a deficient number, since it is larger than the sum of its proper divisors (5252481499).

74271047261 is a wasteful number, since it uses less digits than its factorization.

74271047261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49088703.

The product of its (nonzero) digits is 131712, while the sum is 41.

The spelling of 74271047261 in words is "seventy-four billion, two hundred seventy-one million, forty-seven thousand, two hundred sixty-one".