82378952450 has 48 divisors (see below), whose sum is σ = 155672119680. Its totient is φ = 32428019520.

The previous prime is 82378952449. The next prime is 82378952483. The reversal of 82378952450 is 5425987328.

It is a super-2 number, since 2×82378952450² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82378952392 and 82378952401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1178684 + ... + 1246616.

It is an arithmetic number, because the mean of its divisors is an integer number (3243169160).

Almost surely, 2^82378952450 is an apocalyptic number.

82378952450 is a deficient number, since it is larger than the sum of its proper divisors (73293167230).

82378952450 is a wasteful number, since it uses less digits than its factorization.

82378952450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68331 (or 68326 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 82378952450 in words is "eighty-two billion, three hundred seventy-eight million, nine hundred fifty-two thousand, four hundred fifty".