1915728057973 has 8 divisors (see below), whose sum is σ = 1927535517728. Its totient is φ = 1903921263504.

The previous prime is 1915728057953. The next prime is 1915728057979. The reversal of 1915728057973 is 3797508275191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1915728057973 - 2⁵ = 1915728057941 is a prime.

It is a super-3 number, since 3×1915728057973³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1915728057979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6408586 + ... + 6700852.

It is an arithmetic number, because the mean of its divisors is an integer number (240941939716).

Almost surely, 2^{1915728057973} is an apocalyptic number.

It is an amenable number.

1915728057973 is a deficient number, since it is larger than the sum of its proper divisors (11807459755).

1915728057973 is a wasteful number, since it uses less digits than its factorization.

1915728057973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332643.

The product of its (nonzero) digits is 33339600, while the sum is 64.

The spelling of 1915728057973 in words is "one trillion, nine hundred fifteen billion, seven hundred twenty-eight million, fifty-seven thousand, nine hundred seventy-three".