6787512212450 has 18 divisors (see below), whose sum is σ = 12624806980449. Its totient is φ = 2714997516120.

The previous prime is 6787512212441. The next prime is 6787512212501. The reversal of 6787512212450 is 542122157876.

It can be written as a sum of positive squares in 2 ways, for example, as 6651761968201 + 135750244249 = 2579101^2 + 368443^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1842215.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18237929 + ... + 18606371.

Almost surely, 2^{6787512212450} is an apocalyptic number.

6787512212450 is a deficient number, since it is larger than the sum of its proper divisors (5837294767999).

6787512212450 is an frugal number, since it uses more digits than its factorization.

6787512212450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736898 (or 368450 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

Multiplying 6787512212450 by its sum of digits (50), we get a square (339375610622500 = 18422150²).

6787512212450 divided by its sum of digits (50) gives a square (135750244249 = 368443²).

The spelling of 6787512212450 in words is "six trillion, seven hundred eighty-seven billion, five hundred twelve million, two hundred twelve thousand, four hundred fifty".