49397611826 has 4 divisors (see below), whose sum is σ = 74096417742. Its totient is φ = 24698805912.

The previous prime is 49397611789. The next prime is 49397611829. The reversal of 49397611826 is 62811679394.

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., 31023538225 + 18374073601 = 176135^2 + 135551^2 .

It is a super-2 number, since 2×49397611826² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49397611829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12349402955 + ... + 12349402958.

Almost surely, 2^49397611826 is an apocalyptic number.

49397611826 is a deficient number, since it is larger than the sum of its proper divisors (24698805916).

49397611826 is a wasteful number, since it uses less digits than its factorization.

49397611826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24698805915.

The product of its digits is 3919104, while the sum is 56.

The spelling of 49397611826 in words is "forty-nine billion, three hundred ninety-seven million, six hundred eleven thousand, eight hundred twenty-six".