7101797640 has 128 divisors (see below), whose sum is σ = 24450750720. Its totient is φ = 1616486400.

The previous prime is 7101797639. The next prime is 7101797669. The reversal of 7101797640 is 467971017.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7101797592 and 7101797601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184900 + ... + 219980.

It is an arithmetic number, because the mean of its divisors is an integer number (191021490).

Almost surely, 2^7101797640 is an apocalyptic number.

7101797640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7101797640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12225375360).

7101797640 is an abundant number, since it is smaller than the sum of its proper divisors (17348953080).

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

7101797640 is a wasteful number, since it uses less digits than its factorization.

7101797640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35343 (or 35339 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 7101797640 is about 84272.1640875562. The cubic root of 7101797640 is about 1922.1595384437.

The spelling of 7101797640 in words is "seven billion, one hundred one million, seven hundred ninety-seven thousand, six hundred forty".