47122309946 has 4 divisors (see below), whose sum is σ = 70683464922. Its totient is φ = 23561154972.

The previous prime is 47122309901. The next prime is 47122309957. The reversal of 47122309946 is 64990322174.

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., 38108896225 + 9013413721 = 195215^2 + 94939^2 .

It is a super-3 number, since 3×47122309946³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47122309946.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11780577485 + ... + 11780577488.

Almost surely, 2^47122309946 is an apocalyptic number.

47122309946 is a deficient number, since it is larger than the sum of its proper divisors (23561154976).

47122309946 is a wasteful number, since it uses less digits than its factorization.

47122309946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23561154975.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 47122309946 in words is "forty-seven billion, one hundred twenty-two million, three hundred nine thousand, nine hundred forty-six".