72877321763 has 16 divisors (see below), whose sum is σ = 73836660000. Its totient is φ = 71924267520.

The previous prime is 72877321729. The next prime is 72877321801. The reversal of 72877321763 is 36712377827.

It is a Cunningham number, because it is equal to 269958²-1.

It is a cyclic number.

It is not a de Polignac number, because 72877321763 - 2¹⁶ = 72877256227 is a prime.

It is a super-2 number, since 2×72877321763² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72877321663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30504173 + ... + 30506561.

It is an arithmetic number, because the mean of its divisors is an integer number (4614791250).

Almost surely, 2^72877321763 is an apocalyptic number.

72877321763 is a deficient number, since it is larger than the sum of its proper divisors (959338237).

72877321763 is a wasteful number, since it uses less digits than its factorization.

72877321763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542.

The product of its digits is 4148928, while the sum is 53.

The spelling of 72877321763 in words is "seventy-two billion, eight hundred seventy-seven million, three hundred twenty-one thousand, seven hundred sixty-three".