77201377000 has 128 divisors (see below), whose sum is σ = 203432186880. Its totient is φ = 27167520000.

The previous prime is 77201376997. The next prime is 77201377009. The reversal of 77201377000 is 77310277.

It is a super-2 number, since 2×77201377000² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77201377009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227802 + ... + 454198.

It is an arithmetic number, because the mean of its divisors is an integer number (1589313960).

Almost surely, 2^77201377000 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 77201377000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101716093440).

77201377000 is an abundant number, since it is smaller than the sum of its proper divisors (126230809880).

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

77201377000 is a wasteful number, since it uses less digits than its factorization.

77201377000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226460 (or 226446 counting only the distinct ones).

The product of its (nonzero) digits is 14406, while the sum is 34.

Adding to 77201377000 its reverse (77310277), we get a palindrome (77278687277).

The spelling of 77201377000 in words is "seventy-seven billion, two hundred one million, three hundred seventy-seven thousand".