674136536154 has 64 divisors (see below), whose sum is σ = 1440807284736. Its totient is φ = 209539298304.

The previous prime is 674136536141. The next prime is 674136536159. The reversal of 674136536154 is 451635631476.

It is a super-2 number, since 2×674136536154² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 674136536097 and 674136536106.

It is not an unprimeable number, because it can be changed into a prime (674136536159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9459784 + ... + 9530780.

It is an arithmetic number, because the mean of its divisors is an integer number (22512613824).

Almost surely, 2^674136536154 is an apocalyptic number.

674136536154 is an abundant number, since it is smaller than the sum of its proper divisors (766670748582).

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

674136536154 is a wasteful number, since it uses less digits than its factorization.

674136536154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71879.

The product of its digits is 5443200, while the sum is 51.

The spelling of 674136536154 in words is "six hundred seventy-four billion, one hundred thirty-six million, five hundred thirty-six thousand, one hundred fifty-four".