49158777 has 16 divisors (see below), whose sum is σ = 68526080. Its totient is φ = 31309200.

The previous prime is 49158731. The next prime is 49158787. The reversal of 49158777 is 77785194.

It is not a de Polignac number, because 49158777 - 2¹⁰ = 49157753 is a prime.

It is a super-2 number, since 2×49158777² = 4833170712271458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49158787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4002 + ... + 10692.

It is an arithmetic number, because the mean of its divisors is an integer number (4282880).

Almost surely, 2^49158777 is an apocalyptic number.

It is an amenable number.

49158777 is a deficient number, since it is larger than the sum of its proper divisors (19367303).

49158777 is a wasteful number, since it uses less digits than its factorization.

49158777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6804.

The product of its digits is 493920, while the sum is 48.

The square root of 49158777 is about 7011.3320417735. The cubic root of 49158777 is about 366.3253921915.

The spelling of 49158777 in words is "forty-nine million, one hundred fifty-eight thousand, seven hundred seventy-seven".