20078296830 has 48 divisors (see below), whose sum is σ = 52553966400. Its totient is φ = 5318274624.

The previous prime is 20078296829. The next prime is 20078296831. The reversal of 20078296830 is 3869287002.

It is an interprime number because it is at equal distance from previous prime (20078296829) and next prime (20078296831).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20078296831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 735222 + ... + 762041.

It is an arithmetic number, because the mean of its divisors is an integer number (1094874300).

Almost surely, 2^20078296830 is an apocalyptic number.

20078296830 is an abundant number, since it is smaller than the sum of its proper divisors (32475669570).

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

20078296830 is a wasteful number, since it uses less digits than its factorization.

20078296830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497425 (or 1497422 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 20078296830 in words is "twenty billion, seventy-eight million, two hundred ninety-six thousand, eight hundred thirty".