77970014208 has 352 divisors, whose sum is σ = 247631649120. Its totient is φ = 24461180928.

The previous prime is 77970014207. The next prime is 77970014209. The reversal of 77970014208 is 80241007977.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (77970014207) and next prime (77970014209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77970014207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4586471416 + ... + 4586471432.

Almost surely, 2^77970014208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77970014208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123815824560).

77970014208 is an abundant number, since it is smaller than the sum of its proper divisors (169661634912).

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

77970014208 is an frugal number, since it uses more digits than its factorization.

77970014208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 22 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 77970014208 in words is "seventy-seven billion, nine hundred seventy million, fourteen thousand, two hundred eight".