97049391473 has 4 divisors (see below), whose sum is σ = 97083315828. Its totient is φ = 97015467120.

The previous prime is 97049391449. The next prime is 97049391511. The reversal of 97049391473 is 37419394079.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37419394079 = 48563 ⋅770533.

It can be written as a sum of positive squares in 2 ways, for example, as 53036708209 + 44012683264 = 230297^2 + 209792^2 .

It is a cyclic number.

It is not a de Polignac number, because 97049391473 - 2¹⁶ = 97049325937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97049391773) 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, 16957886 + ... + 16963607.

It is an arithmetic number, because the mean of its divisors is an integer number (24270828957).

Almost surely, 2^97049391473 is an apocalyptic number.

It is an amenable number.

97049391473 is a deficient number, since it is larger than the sum of its proper divisors (33924355).

97049391473 is a wasteful number, since it uses less digits than its factorization.

97049391473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33924354.

The product of its (nonzero) digits is 5143824, while the sum is 56.

The spelling of 97049391473 in words is "ninety-seven billion, forty-nine million, three hundred ninety-one thousand, four hundred seventy-three".