97028147890 has 16 divisors (see below), whose sum is σ = 176754892608. Its totient is φ = 38343653296.

The previous prime is 97028147869. The next prime is 97028147891. The reversal of 97028147890 is 9874182079.

It is a happy number.

It is a super-2 number, since 2×97028147890² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97028147891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58449862 + ... + 58451521.

It is an arithmetic number, because the mean of its divisors is an integer number (11047180788).

Almost surely, 2^97028147890 is an apocalyptic number.

97028147890 is a deficient number, since it is larger than the sum of its proper divisors (79726744718).

97028147890 is a wasteful number, since it uses less digits than its factorization.

97028147890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116901473.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 97028147890 in words is "ninety-seven billion, twenty-eight million, one hundred forty-seven thousand, eight hundred ninety".