139428854898 has 32 divisors (see below), whose sum is σ = 298079091072. Its totient is φ = 43371292800.

The previous prime is 139428854897. The next prime is 139428854927. The reversal of 139428854898 is 898458824931.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is not an unprimeable number, because it can be changed into a prime (139428854897) 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, 12315733 + ... + 12327048.

It is an arithmetic number, because the mean of its divisors is an integer number (9314971596).

Almost surely, 2^139428854898 is an apocalyptic number.

139428854898 is an abundant number, since it is smaller than the sum of its proper divisors (158650236174).

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

139428854898 is a wasteful number, since it uses less digits than its factorization.

139428854898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24642850.

The product of its digits is 159252480, while the sum is 69.

The spelling of 139428854898 in words is "one hundred thirty-nine billion, four hundred twenty-eight million, eight hundred fifty-four thousand, eight hundred ninety-eight".