29772420898 has 8 divisors (see below), whose sum is σ = 48718506960. Its totient is φ = 13532918580.

The previous prime is 29772420869. The next prime is 29772420901. The reversal of 29772420898 is 89802427792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×29772420898² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676645908 + ... + 676645951.

It is an arithmetic number, because the mean of its divisors is an integer number (6089813370).

Almost surely, 2^29772420898 is an apocalyptic number.

29772420898 is a deficient number, since it is larger than the sum of its proper divisors (18946086062).

29772420898 is a wasteful number, since it uses less digits than its factorization.

29772420898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353291872.

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 29772420898 in words is "twenty-nine billion, seven hundred seventy-two million, four hundred twenty thousand, eight hundred ninety-eight".