73702002020 has 12 divisors (see below), whose sum is σ = 154774204284. Its totient is φ = 29480800800.

The previous prime is 73702002019. The next prime is 73702002043. The reversal of 73702002020 is 2020020737.

It can be written as a sum of positive squares in 2 ways, for example, as 11393854564 + 62308147456 = 106742^2 + 249616^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842550031 + ... + 1842550070.

It is an arithmetic number, because the mean of its divisors is an integer number (12897850357).

Almost surely, 2^73702002020 is an apocalyptic number.

It is an amenable number.

73702002020 is an abundant number, since it is smaller than the sum of its proper divisors (81072202264).

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

73702002020 is a wasteful number, since it uses less digits than its factorization.

73702002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685100110 (or 3685100108 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

Adding to 73702002020 its reverse (2020020737), we get a palindrome (75722022757).

The spelling of 73702002020 in words is "seventy-three billion, seven hundred two million, two thousand, twenty".