612100938780 has 192 divisors, whose sum is σ = 1910293176960. Its totient is φ = 162715392000.

The previous prime is 612100938773. The next prime is 612100938781. The reversal of 612100938780 is 87839001216.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612100938781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 383280942 + ... + 383282538.

It is an arithmetic number, because the mean of its divisors is an integer number (9949443630).

Almost surely, 2^612100938780 is an apocalyptic number.

612100938780 is a gapful number since it is divisible by the number (60) 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 612100938780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955146588480).

612100938780 is an abundant number, since it is smaller than the sum of its proper divisors (1298192238180).

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

612100938780 is a wasteful number, since it uses less digits than its factorization.

612100938780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3389 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

Adding to 612100938780 its reverse (87839001216), we get a palindrome (699939939996).

The spelling of 612100938780 in words is "six hundred twelve billion, one hundred million, nine hundred thirty-eight thousand, seven hundred eighty".