49678614769 has 27 divisors (see below), whose sum is σ = 61421542497. Its totient is φ = 40055468544.

The previous prime is 49678614761. The next prime is 49678614793. The reversal of 49678614769 is 96741687694.

The square root of 49678614769 is 222887.

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

It can be written as a sum of positive squares in 4 ways, for example, as 5106960369 + 44571654400 = 71463^2 + 211120^2 .

It is not a de Polignac number, because 49678614769 - 2³ = 49678614761 is a prime.

It is a super-2 number, since 2×49678614769² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49678614761) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26522617 + ... + 26524489.

Almost surely, 2^49678614769 is an apocalyptic number.

49678614769 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

49678614769 is the 222887-th square number.

49678614769 is the 111444-th centered octagonal number.

It is an amenable number.

49678614769 is a deficient number, since it is larger than the sum of its proper divisors (11742927728).

49678614769 is an frugal number, since it uses more digits than its factorization.

49678614769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3794 (or 1897 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 67.

The spelling of 49678614769 in words is "forty-nine billion, six hundred seventy-eight million, six hundred fourteen thousand, seven hundred sixty-nine".