612178142240 has 48 divisors (see below), whose sum is σ = 1652880987072. Its totient is φ = 209889648384.

The previous prime is 612178142239. The next prime is 612178142263. The reversal of 612178142240 is 42241871216.

It is a junction number, because it is equal to n+sod(n) for n = 612178142194 and 612178142203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273292694 + ... + 273294933.

It is an arithmetic number, because the mean of its divisors is an integer number (34435020564).

Almost surely, 2^612178142240 is an apocalyptic number.

It is an amenable number.

612178142240 is an abundant number, since it is smaller than the sum of its proper divisors (1040702844832).

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

612178142240 is a wasteful number, since it uses less digits than its factorization.

612178142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546587649 (or 546587641 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 612178142240 in words is "six hundred twelve billion, one hundred seventy-eight million, one hundred forty-two thousand, two hundred forty".