72345538070 has 16 divisors (see below), whose sum is σ = 140239043280. Its totient is φ = 26712198624.

The previous prime is 72345538061. The next prime is 72345538103. The reversal of 72345538070 is 7083554327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278251940 + ... + 278252199.

It is an arithmetic number, because the mean of its divisors is an integer number (8764940205).

Almost surely, 2^72345538070 is an apocalyptic number.

72345538070 is a deficient number, since it is larger than the sum of its proper divisors (67893505210).

72345538070 is a wasteful number, since it uses less digits than its factorization.

72345538070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556504159.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 72345538070 in words is "seventy-two billion, three hundred forty-five million, five hundred thirty-eight thousand, seventy".