101028292639 has 4 divisors (see below), whose sum is σ = 101038226040. Its totient is φ = 101018359240.

The previous prime is 101028292619. The next prime is 101028292643. The reversal of 101028292639 is 936292820101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101028292639 - 2¹³ = 101028284447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101028292595 and 101028292604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101028292619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4951429 + ... + 4971790.

It is an arithmetic number, because the mean of its divisors is an integer number (25259556510).

Almost surely, 2^101028292639 is an apocalyptic number.

101028292639 is a deficient number, since it is larger than the sum of its proper divisors (9933401).

101028292639 is an equidigital number, since it uses as much as digits as its factorization.

101028292639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9933400.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 101028292639 in words is "one hundred one billion, twenty-eight million, two hundred ninety-two thousand, six hundred thirty-nine".