23129530006490 has 32 divisors (see below), whose sum is σ = 41960364368400. Its totient is φ = 9179240200704.

The previous prime is 23129530006399. The next prime is 23129530006501. The reversal of 23129530006490 is 9460003592132.

It is a Cunningham number, because it is equal to 4809317²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 16226451634849 + 6903078371641 = 4028207^2 + 2627371^2 .

It is a super-2 number, since 2×23129530006490² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7543427 + ... + 10156886.

Almost surely, 2^{23129530006490} is an apocalyptic number.

23129530006490 is a deficient number, since it is larger than the sum of its proper divisors (18830834361910).

23129530006490 is a wasteful number, since it uses less digits than its factorization.

23129530006490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17701346.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 23129530006490 in words is "twenty-three trillion, one hundred twenty-nine billion, five hundred thirty million, six thousand, four hundred ninety".