2097401531064 has 64 divisors (see below), whose sum is σ = 6138736208640. Its totient is φ = 584641539840.

The previous prime is 2097401531053. The next prime is 2097401531081. The reversal of 2097401531064 is 4601351047902.

It is a super-4 number, since 4×2097401531064⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152243514 + ... + 152257289.

It is an arithmetic number, because the mean of its divisors is an integer number (95917753260).

Almost surely, 2^{2097401531064} is an apocalyptic number.

2097401531064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2097401531064 is an abundant number, since it is smaller than the sum of its proper divisors (4041334677576).

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

2097401531064 is a wasteful number, since it uses less digits than its factorization.

2097401531064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304500860 (or 304500856 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

Adding to 2097401531064 its reverse (4601351047902), we get a palindrome (6698752578966).

The spelling of 2097401531064 in words is "two trillion, ninety-seven billion, four hundred one million, five hundred thirty-one thousand, sixty-four".