148839050777 has 4 divisors (see below), whose sum is σ = 157594289076. Its totient is φ = 140083812480.

The previous prime is 148839050747. The next prime is 148839050821. The reversal of 148839050777 is 777050938841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 777050938841 = 61 ⋅12738539981.

It can be written as a sum of positive squares in 2 ways, for example, as 133034538121 + 15804512656 = 364739^2 + 125716^2 .

It is a cyclic number.

It is not a de Polignac number, because 148839050777 - 2⁶ = 148839050713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148839050707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4377619124 + ... + 4377619157.

It is an arithmetic number, because the mean of its divisors is an integer number (39398572269).

Almost surely, 2^148839050777 is an apocalyptic number.

148839050777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

148839050777 is a deficient number, since it is larger than the sum of its proper divisors (8755238299).

148839050777 is an equidigital number, since it uses as much as digits as its factorization.

148839050777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755238298.

The product of its (nonzero) digits is 11854080, while the sum is 59.

The spelling of 148839050777 in words is "one hundred forty-eight billion, eight hundred thirty-nine million, fifty thousand, seven hundred seventy-seven".