70020342639 has 48 divisors (see below), whose sum is σ = 110706523200. Its totient is φ = 42385674240.

The previous prime is 70020342541. The next prime is 70020342653. The reversal of 70020342639 is 93624302007.

It is a happy number.

It is not a de Polignac number, because 70020342639 - 2¹¹ = 70020340591 is a prime.

It is a super-2 number, since 2×70020342639² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70020342659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3720457 + ... + 3739229.

It is an arithmetic number, because the mean of its divisors is an integer number (2306385900).

Almost surely, 2^70020342639 is an apocalyptic number.

70020342639 is a deficient number, since it is larger than the sum of its proper divisors (40686180561).

70020342639 is a wasteful number, since it uses less digits than its factorization.

70020342639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19312 (or 19309 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The spelling of 70020342639 in words is "seventy billion, twenty million, three hundred forty-two thousand, six hundred thirty-nine".