73551972970945 has 16 divisors (see below), whose sum is σ = 106180291808640. Its totient is φ = 47781131313024.

The previous prime is 73551972970921. The next prime is 73551972970963. The reversal of 73551972970945 is 54907927915537.

It is a de Polignac number, because none of the positive numbers 2^k-73551972970945 is a prime.

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, 55302234652 + ... + 55302235981.

It is an arithmetic number, because the mean of its divisors is an integer number (6636268238040).

Almost surely, 2^{73551972970945} is an apocalyptic number.

It is an amenable number.

73551972970945 is a deficient number, since it is larger than the sum of its proper divisors (32628318837695).

73551972970945 is a wasteful number, since it uses less digits than its factorization.

73551972970945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110604470664.

The product of its (nonzero) digits is 750141000, while the sum is 73.

The spelling of 73551972970945 in words is "seventy-three trillion, five hundred fifty-one billion, nine hundred seventy-two million, nine hundred seventy thousand, nine hundred forty-five".