67471890551 has 16 divisors (see below), whose sum is σ = 72895927104. Its totient is φ = 62081455104.

The previous prime is 67471890517. The next prime is 67471890571. The reversal of 67471890551 is 15509817476.

It is a cyclic number.

It is not a de Polignac number, because 67471890551 - 2¹⁴ = 67471874167 is a prime.

It is a super-2 number, since 2×67471890551² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67471890493 and 67471890502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67471890571) 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, 17536910 + ... + 17540756.

It is an arithmetic number, because the mean of its divisors is an integer number (4555995444).

Almost surely, 2^67471890551 is an apocalyptic number.

67471890551 is a deficient number, since it is larger than the sum of its proper divisors (5424036553).

67471890551 is a wasteful number, since it uses less digits than its factorization.

67471890551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7850.

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 67471890551 in words is "sixty-seven billion, four hundred seventy-one million, eight hundred ninety thousand, five hundred fifty-one".