77148283248 has 80 divisors (see below), whose sum is σ = 222267693600. Its totient is φ = 25620456960.

The previous prime is 77148283243. The next prime is 77148283249. The reversal of 77148283248 is 84238284177.

It is a super-2 number, since 2×77148283248² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 77148283194 and 77148283203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77148283243) 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, 215733 + ... + 448148.

It is an arithmetic number, because the mean of its divisors is an integer number (2778346170).

Almost surely, 2^77148283248 is an apocalyptic number.

It is an amenable number.

77148283248 is an abundant number, since it is smaller than the sum of its proper divisors (145119410352).

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

77148283248 is a wasteful number, since it uses less digits than its factorization.

77148283248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664167 (or 664155 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 54.

The spelling of 77148283248 in words is "seventy-seven billion, one hundred forty-eight million, two hundred eighty-three thousand, two hundred forty-eight".