633742472157 has 16 divisors (see below), whose sum is σ = 854548978752. Its totient is φ = 417740048000.

The previous prime is 633742472149. The next prime is 633742472159. The reversal of 633742472157 is 751274247336.

It is a cyclic number.

It is not a de Polignac number, because 633742472157 - 2³ = 633742472149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633742472159) 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, 2968458 + ... + 3174779.

It is an arithmetic number, because the mean of its divisors is an integer number (53409311172).

Almost surely, 2^633742472157 is an apocalyptic number.

It is an amenable number.

633742472157 is a deficient number, since it is larger than the sum of its proper divisors (220806506595).

633742472157 is a wasteful number, since it uses less digits than its factorization.

633742472157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6143628.

The product of its digits is 5927040, while the sum is 51.

The spelling of 633742472157 in words is "six hundred thirty-three billion, seven hundred forty-two million, four hundred seventy-two thousand, one hundred fifty-seven".