77280651030 has 64 divisors (see below), whose sum is σ = 202694669568. Its totient is φ = 18701381760.

The previous prime is 77280651029. The next prime is 77280651083. The reversal of 77280651030 is 3015608277.

It is a self number, because there is not a number n which added to its sum of digits gives 77280651030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22189 + ... + 393768.

It is an arithmetic number, because the mean of its divisors is an integer number (3167104212).

Almost surely, 2^77280651030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77280651030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101347334784).

77280651030 is an abundant number, since it is smaller than the sum of its proper divisors (125414018538).

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

77280651030 is a wasteful number, since it uses less digits than its factorization.

77280651030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416541.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 77280651030 in words is "seventy-seven billion, two hundred eighty million, six hundred fifty-one thousand, thirty".