5123151540542 has 64 divisors (see below), whose sum is σ = 9886562417664. Its totient is φ = 1939339184640.

The previous prime is 5123151540541. The next prime is 5123151540553. The reversal of 5123151540542 is 2450451513215.

It is a junction number, because it is equal to n+sod(n) for n = 5123151540496 and 5123151540505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123151540541) 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, 8539184 + ... + 9119427.

It is an arithmetic number, because the mean of its divisors is an integer number (154477537776).

Almost surely, 2^{5123151540542} is an apocalyptic number.

5123151540542 is a deficient number, since it is larger than the sum of its proper divisors (4763410877122).

5123151540542 is a wasteful number, since it uses less digits than its factorization.

5123151540542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17658713.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 5123151540542 in words is "five trillion, one hundred twenty-three billion, one hundred fifty-one million, five hundred forty thousand, five hundred forty-two".