72779503030 has 32 divisors (see below), whose sum is σ = 144521260128. Its totient is φ = 26217004800.

The previous prime is 72779503009. The next prime is 72779503057. The reversal of 72779503030 is 3030597727.

It is a super-2 number, since 2×72779503030² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 6822016 + ... + 6832675.

It is an arithmetic number, because the mean of its divisors is an integer number (4516289379).

Almost surely, 2^72779503030 is an apocalyptic number.

72779503030 is a deficient number, since it is larger than the sum of its proper divisors (71741757098).

72779503030 is a wasteful number, since it uses less digits than its factorization.

72779503030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13654752.

The product of its (nonzero) digits is 277830, while the sum is 43.

The spelling of 72779503030 in words is "seventy-two billion, seven hundred seventy-nine million, five hundred three thousand, thirty".