49260470809 has 9 divisors (see below), whose sum is σ = 54148490431. Its totient is φ = 44780026720.

The previous prime is 49260470807. The next prime is 49260470827. The reversal of 49260470809 is 90807406294.

The square root of 49260470809 is 221947.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 34212051225 + 15048419584 = 184965^2 + 122672^2 .

It is not a de Polignac number, because 49260470809 - 2¹ = 49260470807 is a prime.

It is a super-2 number, since 2×49260470809² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49260470807) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2431329 + ... + 2451505.

Almost surely, 2^49260470809 is an apocalyptic number.

49260470809 is the 221947-th square number.

49260470809 is the 110974-th centered octagonal number.

It is an amenable number.

49260470809 is a deficient number, since it is larger than the sum of its proper divisors (4888019622).

49260470809 is an frugal number, since it uses more digits than its factorization.

49260470809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40376 (or 20188 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

Multiplying 49260470809 by its sum of digits (49), we get a square (2413763069641 = 1553629²).

The spelling of 49260470809 in words is "forty-nine billion, two hundred sixty million, four hundred seventy thousand, eight hundred nine".