612891699876 has 405 divisors, whose sum is σ = 1759519690929. Its totient is φ = 186010862400.

The previous prime is 612891699811. The next prime is 612891699941. The reversal of 612891699876 is 678996198216.

The square root of 612891699876 is 782874.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (612891699811) and next prime (612891699941).

It can be written as a sum of positive squares in only one way, i.e., 19930098276 + 592961601600 = 141174^2 + 770040^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 10047404886 + ... + 10047404946.

Almost surely, 2^612891699876 is an apocalyptic number.

612891699876 is the 782874-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612891699876

612891699876 is an abundant number, since it is smaller than the sum of its proper divisors (1146627991053).

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

612891699876 is a wasteful number, since it uses less digits than its factorization.

612891699876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 120 counting only the distinct ones).

The product of its digits is 141087744, while the sum is 72.

The spelling of 612891699876 in words is "six hundred twelve billion, eight hundred ninety-one million, six hundred ninety-nine thousand, eight hundred seventy-six".