7812020102 has 8 divisors (see below), whose sum is σ = 11878551336. Its totient is φ = 3852502992.

The previous prime is 7812020093. The next prime is 7812020113. The reversal of 7812020102 is 2010202187.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7812020102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 26753348 + ... + 26753639.

It is an arithmetic number, because the mean of its divisors is an integer number (1484818917).

Almost surely, 2^7812020102 is an apocalyptic number.

7812020102 is a deficient number, since it is larger than the sum of its proper divisors (4066531234).

7812020102 is a wasteful number, since it uses less digits than its factorization.

7812020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53507062.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 7812020102 is about 88385.6328935874. The cubic root of 7812020102 is about 1984.2106852969.

Adding to 7812020102 its reverse (2010202187), we get a palindrome (9822222289).

The spelling of 7812020102 in words is "seven billion, eight hundred twelve million, twenty thousand, one hundred two".