73006777554 has 16 divisors (see below), whose sum is σ = 146943579648. Its totient is φ = 24180588432.

The previous prime is 73006777553. The next prime is 73006777561. The reversal of 73006777554 is 45577760037.

It is a junction number, because it is equal to n+sod(n) for n = 73006777497 and 73006777506.

It is not an unprimeable number, because it can be changed into a prime (73006777553) 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, 38750002 + ... + 38751885.

It is an arithmetic number, because the mean of its divisors is an integer number (9183973728).

Almost surely, 2^73006777554 is an apocalyptic number.

73006777554 is an abundant number, since it is smaller than the sum of its proper divisors (73936802094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73006777554 is a wasteful number, since it uses less digits than its factorization.

73006777554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77502049.

The product of its (nonzero) digits is 4321800, while the sum is 51.

The spelling of 73006777554 in words is "seventy-three billion, six million, seven hundred seventy-seven thousand, five hundred fifty-four".