612963278136 has 144 divisors (see below), whose sum is σ = 1855677259800. Its totient is φ = 182598049920.

The previous prime is 612963278113. The next prime is 612963278149. The reversal of 612963278136 is 631872369216.

612963278136 is a `hidden beast` number, since 612 + 9 + 6 + 3 + 2 + 7 + 8 + 13 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82251 + ... + 1110266.

Almost surely, 2^612963278136 is an apocalyptic number.

612963278136 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612963278136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927838629900).

612963278136 is an abundant number, since it is smaller than the sum of its proper divisors (1242713981664).

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

612963278136 is a wasteful number, since it uses less digits than its factorization.

612963278136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192610 (or 1192592 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 612963278136 in words is "six hundred twelve billion, nine hundred sixty-three million, two hundred seventy-eight thousand, one hundred thirty-six".