61267853538572 has 24 divisors (see below), whose sum is σ = 111920979300480. Its totient is φ = 29312637425280.

The previous prime is 61267853538547. The next prime is 61267853538613. The reversal of 61267853538572 is 27583535876216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775806903 + ... + 2775828974.

It is an arithmetic number, because the mean of its divisors is an integer number (4663374137520).

Almost surely, 2^{61267853538572} is an apocalyptic number.

61267853538572 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61267853538572 is a deficient number, since it is larger than the sum of its proper divisors (50653125761908).

61267853538572 is a wasteful number, since it uses less digits than its factorization.

61267853538572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551636001 (or 5551635999 counting only the distinct ones).

The product of its digits is 508032000, while the sum is 68.

The spelling of 61267853538572 in words is "sixty-one trillion, two hundred sixty-seven billion, eight hundred fifty-three million, five hundred thirty-eight thousand, five hundred seventy-two".