77473287000 has 256 divisors, whose sum is σ = 269942400000. Its totient is φ = 20554300800.

The previous prime is 77473286983. The next prime is 77473287041. The reversal of 77473287000 is 78237477.

It is a super-2 number, since 2×77473287000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5365791 + ... + 5380209.

It is an arithmetic number, because the mean of its divisors is an integer number (1054462500).

Almost surely, 2^77473287000 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 77473287000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134971200000).

77473287000 is an abundant number, since it is smaller than the sum of its proper divisors (192469113000).

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

77473287000 is a wasteful number, since it uses less digits than its factorization.

77473287000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14648 (or 14628 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 45.

The spelling of 77473287000 in words is "seventy-seven billion, four hundred seventy-three million, two hundred eighty-seven thousand".