72046999987 has 8 divisors (see below), whose sum is σ = 73274731200. Its totient is φ = 70819488744.

The previous prime is 72046999979. The next prime is 72047000057. The reversal of 72046999987 is 78999964027.

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 72046999987 - 2³ = 72046999979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72046999967) 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, 691108 + ... + 788494.

It is an arithmetic number, because the mean of its divisors is an integer number (9159341400).

Almost surely, 2^72046999987 is an apocalyptic number.

72046999987 is a deficient number, since it is larger than the sum of its proper divisors (1227731213).

72046999987 is a wasteful number, since it uses less digits than its factorization.

72046999987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109985.

The product of its (nonzero) digits is 123451776, while the sum is 70.

The spelling of 72046999987 in words is "seventy-two billion, forty-six million, nine hundred ninety-nine thousand, nine hundred eighty-seven".