48777780 has 24 divisors (see below), whose sum is σ = 136577952. Its totient is φ = 13007392.

The previous prime is 48777767. The next prime is 48777793. The reversal of 48777780 is 8777784.

It is an interprime number because it is at equal distance from previous prime (48777767) and next prime (48777793).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406422 + ... + 406541.

It is an arithmetic number, because the mean of its divisors is an integer number (5690748).

Almost surely, 2^48777780 is an apocalyptic number.

It is an amenable number.

48777780 is an abundant number, since it is smaller than the sum of its proper divisors (87800172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48777780 is a wasteful number, since it uses less digits than its factorization.

48777780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812975 (or 812973 counting only the distinct ones).

The product of its (nonzero) digits is 614656, while the sum is 48.

The square root of 48777780 is about 6984.1091056770. The cubic root of 48777780 is about 365.3765551571.

The spelling of 48777780 in words is "forty-eight million, seven hundred seventy-seven thousand, seven hundred eighty".