701147778816 has 144 divisors (see below), whose sum is σ = 1935493344288. Its totient is φ = 225146880000.

The previous prime is 701147778797. The next prime is 701147778823. The reversal of 701147778816 is 618877741107.

It is a happy number.

It is a super-2 number, since 2×701147778816² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2747866 + ... + 2992166.

It is an arithmetic number, because the mean of its divisors is an integer number (13440926002).

Almost surely, 2^701147778816 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 701147778816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967746672144).

701147778816 is an abundant number, since it is smaller than the sum of its proper divisors (1234345565472).

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

701147778816 is a wasteful number, since it uses less digits than its factorization.

701147778816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244458 (or 244444 counting only the distinct ones).

The product of its (nonzero) digits is 3687936, while the sum is 57.

The spelling of 701147778816 in words is "seven hundred one billion, one hundred forty-seven million, seven hundred seventy-eight thousand, eight hundred sixteen".