77206525745 has 32 divisors (see below), whose sum is σ = 98287042560. Its totient is φ = 58057560000.

The previous prime is 77206525723. The next prime is 77206525751. The reversal of 77206525745 is 54752560277.

It is not a de Polignac number, because 77206525745 - 2¹⁴ = 77206509361 is a prime.

It is a super-2 number, since 2×77206525745² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77206525693 and 77206525702.

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, 14213180 + ... + 14218610.

It is an arithmetic number, because the mean of its divisors is an integer number (3071470080).

Almost surely, 2^77206525745 is an apocalyptic number.

It is an amenable number.

77206525745 is a deficient number, since it is larger than the sum of its proper divisors (21080516815).

77206525745 is a wasteful number, since it uses less digits than its factorization.

77206525745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597.

The product of its (nonzero) digits is 4116000, while the sum is 50.

The spelling of 77206525745 in words is "seventy-seven billion, two hundred six million, five hundred twenty-five thousand, seven hundred forty-five".