6210667078642 has 16 divisors (see below), whose sum is σ = 10033064059032. Its totient is φ = 2866333726080.

The previous prime is 6210667078633. The next prime is 6210667078657. The reversal of 6210667078642 is 2468707660126.

It is a happy number.

It is a Cunningham number, because it is equal to 2492121²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1833454110601 + 4377212968041 = 1354051^2 + 2092179^2 .

It is a super-2 number, since 2×6210667078642² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4738753 + ... + 5905684.

Almost surely, 2^{6210667078642} is an apocalyptic number.

6210667078642 is a deficient number, since it is larger than the sum of its proper divisors (3822396980390).

6210667078642 is a wasteful number, since it uses less digits than its factorization.

6210667078642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666893.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 6210667078642 in words is "six trillion, two hundred ten billion, six hundred sixty-seven million, seventy-eight thousand, six hundred forty-two".