97142421016890 has 32 divisors (see below), whose sum is σ = 259046456045760. Its totient is φ = 25904645604432.

The previous prime is 97142421016873. The next prime is 97142421016897. The reversal of 97142421016890 is 9861012424179.

97142421016890 is a `hidden beast` number, since 9 + 71 + 4 + 2 + 421 + 0 + 1 + 68 + 90 = 666.

It is a super-2 number, since 2×97142421016890² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (97142421016897) 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, 179893371984 + ... + 179893372523.

It is an arithmetic number, because the mean of its divisors is an integer number (8095201751430).

Almost surely, 2^{97142421016890} is an apocalyptic number.

97142421016890 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97142421016890 is an abundant number, since it is smaller than the sum of its proper divisors (161904035028870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97142421016890 is a wasteful number, since it uses less digits than its factorization.

97142421016890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359786744523 (or 359786744517 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 97142421016890 in words is "ninety-seven trillion, one hundred forty-two billion, four hundred twenty-one million, sixteen thousand, eight hundred ninety".