77010001000 has 64 divisors (see below), whose sum is σ = 182893164480. Its totient is φ = 30344212800.

The previous prime is 77010000989. The next prime is 77010001001. The reversal of 77010001000 is 10001077.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77010001001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 507702 + ... + 641701.

It is an arithmetic number, because the mean of its divisors is an integer number (2857705695).

Almost surely, 2^77010001000 is an apocalyptic number.

It is an amenable number.

77010001000 is an abundant number, since it is smaller than the sum of its proper divisors (105883163480).

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

77010001000 is a wasteful number, since it uses less digits than its factorization.

77010001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149491 (or 1149477 counting only the distinct ones).

The product of its (nonzero) digits is 49, while the sum is 16.

Adding to 77010001000 its reverse (10001077), we get a palindrome (77020002077).

The spelling of 77010001000 in words is "seventy-seven billion, ten million, one thousand".