47897511026 has 4 divisors (see below), whose sum is σ = 71846266542. Its totient is φ = 23948755512.

The previous prime is 47897511007. The next prime is 47897511029. The reversal of 47897511026 is 62011579874.

It is a happy number.

It is a Cunningham number, because it is equal to 218855²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47897511025 + 1 = 218855^2 + 1^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47897511029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11974377755 + ... + 11974377758.

Almost surely, 2^47897511026 is an apocalyptic number.

47897511026 is a deficient number, since it is larger than the sum of its proper divisors (23948755516).

47897511026 is a wasteful number, since it uses less digits than its factorization.

47897511026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23948755515.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 47897511026 in words is "forty-seven billion, eight hundred ninety-seven million, five hundred eleven thousand, twenty-six".