74779034616 has 384 divisors, whose sum is σ = 251282304000. Its totient is φ = 19751040000.

The previous prime is 74779034611. The next prime is 74779034621. The reversal of 74779034616 is 61643097747.

It is an interprime number because it is at equal distance from previous prime (74779034611) and next prime (74779034621).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74779034611) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99572241 + ... + 99572991.

It is an arithmetic number, because the mean of its divisors is an integer number (654381000).

Almost surely, 2^74779034616 is an apocalyptic number.

74779034616 is a gapful number since it is divisible by the number (76) 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 74779034616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125641152000).

74779034616 is an abundant number, since it is smaller than the sum of its proper divisors (176503269384).

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

74779034616 is a wasteful number, since it uses less digits than its factorization.

74779034616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 74779034616 in words is "seventy-four billion, seven hundred seventy-nine million, thirty-four thousand, six hundred sixteen".