1973695380432 has 80 divisors (see below), whose sum is σ = 5151925172352. Its totient is φ = 651034091520.

The previous prime is 1973695380379. The next prime is 1973695380443. The reversal of 1973695380432 is 2340835963791.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45239173 + ... + 45282779.

It is a 1-persistent number, because it is pandigital, but 2⋅1973695380432 = 3947390760864 is not.

Almost surely, 2^{1973695380432} is an apocalyptic number.

1973695380432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1973695380432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2575962586176).

1973695380432 is an abundant number, since it is smaller than the sum of its proper divisors (3178229791920).

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

1973695380432 is a wasteful number, since it uses less digits than its factorization.

1973695380432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53436 (or 53430 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 60.

The spelling of 1973695380432 in words is "one trillion, nine hundred seventy-three billion, six hundred ninety-five million, three hundred eighty thousand, four hundred thirty-two".