97775309741 has 4 divisors (see below), whose sum is σ = 97775973372. Its totient is φ = 97774646112.

The previous prime is 97775309711. The next prime is 97775309747. The reversal of 97775309741 is 14790357779.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14790357779 = 1723 ⋅8584073.

It can be written as a sum of positive squares in 2 ways, for example, as 49185924841 + 48589384900 = 221779^2 + 220430^2 .

It is a cyclic number.

It is not a de Polignac number, because 97775309741 - 2¹⁸ = 97775047597 is a prime.

It is a super-2 number, since 2×97775309741² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97775309747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626 + ... + 442211.

It is an arithmetic number, because the mean of its divisors is an integer number (24443993343).

Almost surely, 2^97775309741 is an apocalyptic number.

It is an amenable number.

97775309741 is a deficient number, since it is larger than the sum of its proper divisors (663631).

97775309741 is a wasteful number, since it uses less digits than its factorization.

97775309741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663630.

The product of its (nonzero) digits is 11668860, while the sum is 59.

The spelling of 97775309741 in words is "ninety-seven billion, seven hundred seventy-five million, three hundred nine thousand, seven hundred forty-one".