612878237401 has 8 divisors (see below), whose sum is σ = 639545961600. Its totient is φ = 586212250272.

The previous prime is 612878237371. The next prime is 612878237429. The reversal of 612878237401 is 104732878216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612878237401 - 2¹⁷ = 612878106329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612878237501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 314196 + ... + 1150858.

It is an arithmetic number, because the mean of its divisors is an integer number (79943245200).

Almost surely, 2^612878237401 is an apocalyptic number.

It is an amenable number.

612878237401 is a deficient number, since it is larger than the sum of its proper divisors (26667724199).

612878237401 is a wasteful number, since it uses less digits than its factorization.

612878237401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868535.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 612878237401 in words is "six hundred twelve billion, eight hundred seventy-eight million, two hundred thirty-seven thousand, four hundred one".