97978030407 has 16 divisors (see below), whose sum is σ = 146990016000. Its totient is φ = 64491866712.

The previous prime is 97978030391. The next prime is 97978030429. The reversal of 97978030407 is 70403087979.

It is not a de Polignac number, because 97978030407 - 2⁴ = 97978030391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97978030307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22965057 + ... + 22969322.

It is an arithmetic number, because the mean of its divisors is an integer number (9186876000).

Almost surely, 2^97978030407 is an apocalyptic number.

97978030407 is a deficient number, since it is larger than the sum of its proper divisors (49011985593).

97978030407 is a wasteful number, since it uses less digits than its factorization.

97978030407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45934467 (or 45934461 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 54.

The spelling of 97978030407 in words is "ninety-seven billion, nine hundred seventy-eight million, thirty thousand, four hundred seven".