797740726770 has 72 divisors (see below), whose sum is σ = 2245947012036. Its totient is φ = 196366944384.

The previous prime is 797740726723. The next prime is 797740726789. The reversal of 797740726770 is 77627047797.

797740726770 is a `hidden beast` number, since 79 + 77 + 407 + 26 + 7 + 70 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 150626529 + 797590100241 = 12273^2 + 893079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 797740726698 and 797740726707.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26209009 + ... + 26239428.

Almost surely, 2^797740726770 is an apocalyptic number.

797740726770 is an abundant number, since it is smaller than the sum of its proper divisors (1448206285266).

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

797740726770 is a wasteful number, since it uses less digits than its factorization.

797740726770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52448476 (or 52448460 counting only the distinct ones).

The product of its (nonzero) digits is 50824368, while the sum is 63.

The spelling of 797740726770 in words is "seven hundred ninety-seven billion, seven hundred forty million, seven hundred twenty-six thousand, seven hundred seventy".