70900561842 has 128 divisors (see below), whose sum is σ = 165932236800. Its totient is φ = 19968379200.

The previous prime is 70900561841. The next prime is 70900561859. The reversal of 70900561842 is 24816500907.

It is a super-2 number, since 2×70900561842² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70900561794 and 70900561803.

It is not an unprimeable number, because it can be changed into a prime (70900561841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71543967 + ... + 71544957.

It is an arithmetic number, because the mean of its divisors is an integer number (1296345600).

Almost surely, 2^70900561842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70900561842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82966118400).

70900561842 is an abundant number, since it is smaller than the sum of its proper divisors (95031674958).

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

70900561842 is a wasteful number, since it uses less digits than its factorization.

70900561842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 70900561842 in words is "seventy billion, nine hundred million, five hundred sixty-one thousand, eight hundred forty-two".