94212029781 has 12 divisors (see below), whose sum is σ = 137806626880. Its totient is φ = 62012981160.

The previous prime is 94212029773. The next prime is 94212029827. The reversal of 94212029781 is 18792021249.

It is not a de Polignac number, because 94212029781 - 2³ = 94212029773 is a prime.

It is a super-2 number, since 2×94212029781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94212029731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66252475 + ... + 66253896.

Almost surely, 2^94212029781 is an apocalyptic number.

It is an amenable number.

94212029781 is a deficient number, since it is larger than the sum of its proper divisors (43594597099).

94212029781 is a wasteful number, since it uses less digits than its factorization.

94212029781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132506456 (or 132506453 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 94212029781 in words is "ninety-four billion, two hundred twelve million, twenty-nine thousand, seven hundred eighty-one".